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Morning Aspen Universal Sill ledge Evolve Stone Veneer Siding

Evolve Stone Universal Sill Ledge - Non-Rated 25ft box

by Evolve Stone
$308.48 - $308.48
$308.48
$308.48 - $308.48
$308.48

The Evolve Stone mortarless siding system includes optional universal sill ledge panels. This sill accessory is ideal for completing the top wainscot cladding on a partial wall project or topping off stone columns. 

Each box contains fifteen 20" long universal sill pieces for a total of 25 linear feet per box. 

Available in four colors: Phantom Shadow, Kodiak Mine, Morning Aspen, and Dune Point to match and accent your particular project. 

This is not rated for fireplaces. Please view our entire collection to find Evolve Stone's complete line, including fire-rated products. 

Are you looking for a quote for your entire project?

Get a quote for your project HERE> 

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Sales on Evolve Stone products and accessories are final and are ineligible for refund or exchange.

Color: Morning Aspen

Universal Sill Coverage Calculator

Step 1 — Sill / Ledge Length

Step 2 — Flat Panel Wall Area

✓ The Universal Sill Ledge installs with the same finish nailer as the flat panels — no mortar, no lath, no scratch coat. Set the sill first along a snapped level line, then butt flat panels up to it from above. The angled top surface faces away from the building to shed water. Miter at 45° on a standard miter saw for inside and outside corners — no separate corner sill piece is needed.

How the Sill Fits the Full System

Standard Exterior Wainscot Assembly
New construction · wood-framed walls · full manufacturer warranty · ASTM E2556 compliant
Step 1 — Barrier WRB / House Wrap ASTM E2556 compliant · over OSB sheathing
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Step 2 — Drainage Evolve Rainscreen Required exterior · 200 sq ft / roll
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Step 3 — You Are Here Universal Sill Set first · level line · 25 LF / box
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Step 4 — Field Stone Flat Panels Butt to sill top · 14.25 sq ft / box
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Step 5 — Corners Evolve Corners Outside corner returns · 7 LF / box

Install the sill ledge before running flat panels — it is the base reference for your stone field, not a cap applied afterward. Snap a level chalk line at finished sill height, nail the sill to it, then start your first course of flat panels at the sill top edge. Seal all miter joints with color-matched exterior caulk after installation.

Interior Accent Wall & Fireplace Surround
No WRB or rainscreen needed · nails directly to OSB or plywood · Fire-Rated required at fireplace surrounds
Trim — You Are Here Universal Sill Mantel ledges & wall reveals · 25 LF / box
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Field Stone Flat Panels Nail direct to sheathing · no barrier needed
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Corners Evolve Corners Outside corner returns · 7 LF / box

For fireplace surrounds, mantel shelves, or any application near heat, specify Fire-Rated sill ledges and flat panels at time of order. Non-Rated and Fire-Rated versions look identical — check the label before installation. No WRB or rainscreen is required for interior applications.

Material Quantity Reference
Add 10% to every calculation to account for cuts, waste, and color blending across boxes
Product Coverage / Unit Estimating Formula
Universal Sill 25 linear ft / box Total sill run (ft) × 1.10 ÷ 25, round up
Flat Panels (all styles except Monument Gate) 14.25 sq ft / box Wall sq ft × 1.10 ÷ 14.25, round up
Monument Gate Flats 20.25 sq ft / box Wall sq ft × 1.10 ÷ 20.25, round up
Evolve Corners 7 linear ft · 7 sq ft / box Total corner height (ft) × 1.10 ÷ 7, round up
Evolve Rainscreen 200 sq ft / roll Wall sq ft × 1.10 ÷ 200, round up

Frequently Purchased Together

Evolve Stone Universal Sill Ledge — mitered outside corner on exterior stone veneer wainscot
You Are Here
Universal Sill Ledge
Angled trim piece for window sills and wainscot bottom terminations. Miters at inside and outside corners — no separate corner sill needed. All 7 colors, Non-Rated & Fire-Rated.
25 linear ft / box · ~15 pieces
From $308.48 / box
Shop Universal Sill
Evolve Stone Flat Panels in River Clay — Georgetown Run style mortarless nailable stone veneer field panels
Evolve Stone Flat Panels
The field stone for your wall. 5 styles, 7 colors, Non-Rated & Fire-Rated. Nails with a finish nailer — no mortar, no lath, no scratch coat. Butt the first course directly to the sill top edge.
14.25 sq ft / box · 2 lbs / sq ft
From $197.98 / box
Shop Flat Panels
Evolve Stone Corner Panels in Phantom Shadow — pre-formed outside corner for mortarless stone veneer
Evolve Stone Corners
Pre-formed outside corner panels that wrap both wall faces in one unit. Same finish-nail installation as flat panels — 6 colors, Non-Rated & Fire-Rated. Order early; lead times run longer than flats.
7 linear ft · 7 sq ft / box
From $239.98 / box
Shop Corners
Evolve Stone Rainscreen drainage mat — required drainage and ventilation layer for all exterior Evolve Stone installations
Evolve Rainscreen
Drainage and ventilation layer required on all exterior walls before nailing stone or sill. Goes over the WRB, under the flat panels, corners, and sill ledge. Cut and butt at every corner — do not wrap.
200 sq ft / roll · 4 ft × 50 ft
$162.48 / roll
Shop Rainscreen

📞 Need a full material takeoff for your project? Call (800) 567-5358 Mon–Fri 8AM–5PM EST or submit a quote request online ›

Evolve Stone Universal Sill Ledge — Mortarless Stone Veneer Wainscot & Window Sill Trim

Clean Bottom Termination, No Mortar Required

The Evolve Stone Universal Sill Ledge provides a finished, water-shedding termination at the base of any Evolve Stone wainscot run and at window sill applications. It installs with a standard finish nailer — no mortar, no lath, no scratch coat — using the same technique as Evolve Stone flat panels.

Each piece is 20 inches long, 2.25 inches wide, and 2 inches tall, with an angled top surface that directs water away from the building envelope. Pieces miter cleanly on a standard miter saw to handle inside and outside corners — no special corner piece required.

Sold in 25-linear-foot boxes. Available in all 7 Evolve Stone colors in Non-Rated and Fire-Rated versions. Order sills in the same color as your flat panels on the same elevation.

✓ Angled top surface for drainage  •  ✓ 25 linear ft per box (~15 pieces)  •  ✓ Miters at inside & outside corners — no separate corner piece needed  •  ✓ All 7 colors available  •  ✓ Non-Rated (ICC-ES ESR-3970) · Fire-Rated (ICC-ES ESL-1247)  •  ✓ Made in the USA

✏️ Need a project quote? Request Online

📞 Questions? Call (800) 567-5358 — Mon–Fri 8AM–5PM EST

Evolve Stone Universal Sill Ledge

Evolve Stone Universal Sill Ledge installed on exterior stone veneer wainscot, showing mitered outside corner and angled drainage surface
Evolve Stone Universal Sill Ledge — mitered outside corner on exterior wainscot application
Wainscot Termination
Window Sills
All 7 Colors
Non-Rated
Fire-Rated
ICC-ES ESR-3970
ICC-ES ESL-1247

How to Estimate Your Sill Order

Sills are measured and ordered by linear feet. Measure every horizontal run that will receive a sill ledge — the bottom of each wainscot section plus any window sill widths. Add those measurements together for your total linear footage.

Step What to Do
1. Measure Measure the linear feet of every horizontal sill run — bottom of wainscot sections and window sill widths
2. Total Add all runs together for total linear footage across the project
3. Add overage Multiply total by 1.10 to add a 10% overage for miter cuts and end cuts
4. Divide and round up Divide by 25 (linear ft per box) and round up to the nearest whole box
Example 3 wainscot runs at 12 ft each = 36 linear ft × 1.10 = 39.6 ÷ 25 = 1.58 → order 2 boxes
Product Coverage per Box Used For
Universal Sill Ledge 25 linear ft Bottom termination of wainscot runs & window sills
Flat Panels (most styles) 14.25 sq ft / box Field installation on flat wall surfaces
Corner Panels 7 linear ft · 7 sq ft / box Outside corners of flat panel field
Evolve Rainscreen 200 sq ft / roll Required underlayment for all exterior installations

Shipping & Lead Times

Call (800) 567-5358 for current availability and lead time before placing your order.

Most orders ship within 7–9 business days following the order, depending on stock levels. If a sill color is on backorder, lead times may extend to 4–6 weeks. We will contact you with an updated ship date if this applies.

Best practice: Order sill ledges at the same time as your flat panels so all trim pieces arrive before installation begins.

United States shipping transit time map for Evolve Stone products shipped from Material Warehouse, color-coded by 1 to 4 day delivery zones Click to open full-size shipping map ›
Transit times shown are for in-stock orders. Contiguous 48 states only.

Universal Sill Ledge — Full Specifications

PropertyValue
Coverage per Box25 linear feet (~15 pieces per box)
Piece Length20 inches
Width2.25 inches
Height (Tail)2 inches
Top SurfaceAngled for drainage — sheds water away from wall
Corner HandlingMiter at 45° on standard miter saw — same piece for inside & outside corners
MaterialPatented Evolve Material — color infused throughout
Fasteners16-gauge 304 SS finish nails, 2" min (316 SS for coastal)
SubstrateMin. 7/16" OSB or plywood over studs at 16" o.c.
Exterior RequirementASTM E2556 WRB + Evolve Rainscreen before nailing
Rating OptionsNon-Rated (ICC-ES ESR-3970) · Fire-Rated (ICC-ES ESL-1247)
Cutting ToolsStandard miter saw, jigsaw, or multi-tool
OriginMade in the USA

Color Availability — All 7 Colors

The Universal Sill Ledge is available in all seven Evolve Stone colors in both Non-Rated and Fire-Rated versions. Order in the same color as your flat panels on the same elevation.

Phantom Shadow stone veneer color swatch Phantom Shadow
Kodiak Mine stone veneer color swatch Kodiak Mine
Morning Aspen stone veneer color swatch Morning Aspen
Dune Point stone veneer color swatch Dune Point
Winter Valley stone veneer color swatch Winter Valley
River Clay stone veneer color swatch River Clay
Afternoon Vale stone veneer color swatch Afternoon Vale

Order a color sample box ›  ·  Call (800) 567-5358 to confirm color availability before ordering.

How to Install the Evolve Stone Universal Sill Ledge

The sill ledge is a trim piece — it installs at the base of the flat panel field, not within it. Set it before running flat panels up the wall so your layout references the sill top edge as the starting point.

Step What to Do Key Detail
1. Prep the wall Install WRB and Evolve Rainscreen on the wall face — extend to where the sill will land Rainscreen must be present under the sill ledge on all exterior applications
2. Snap a level line Snap a chalk line at the finished sill height — this is the top edge of the sill ledge, not the bottom of the stone above it A level reference line ensures consistent sill height across the entire run, especially important on long wainscot walls
3. Cut corners Miter sill pieces at 45° at inside and outside corners using a standard miter saw The same piece handles both corner directions — no separate corner sill is needed. Dry-fit before nailing.
4. Nail sill ledge Nail the sill along the chalk line with 16-gauge stainless finish nails at approximately 8–12 inches on center Angled top faces out — confirm drainage direction before nailing. Both faces can look similar at a glance.
5. Butt flat panels to sill Start the first course of flat panels directly above the sill ledge — the sill top edge is your base reference Do not run flat panels behind the sill. The sill is the termination point, not an underlayment.
6. Caulk joints Run a bead of color-matched exterior sealant along miter joints and where the sill meets the flat panels above Use a paintable, UV-stable exterior caulk in a matching stone color. Do not leave miter joints open on exterior applications.

Source: Evolve Stone Installation Guide. Full nailing patterns and flashing details are in the Installation Guide.

Good to Know Before You Order

ⓘ What Every Sill Buyer Should Know

  1. Install the sill before you run flat panels. The sill ledge is the base reference for your stone field. Setting it first gives you a level, consistent starting point — flat panels butt up to the sill rather than tucking behind it.
  2. One piece handles every corner — just miter it. The “Universal” name means you don’t need a separate inside or outside corner sill piece. A 45° cut on a standard miter saw handles both. Dry-fit and mark your cuts before nailing the run.
  3. The angled top faces out. The drainage angle on the sill top surface must face away from the building. Confirm orientation before nailing — both faces can look similar at a glance.
  4. Match color to your flat panels. Sill ledges are color-infused throughout the Evolve Material, so cut ends stay consistent — but they only blend at the transition if you order the same color as your flat panel field on that elevation. All 7 colors are available.
  5. Non-Rated ships by default unless you specify Fire-Rated. Both versions are physically identical. For fireplace surrounds, exterior pizza ovens, or any application where local code requires a fire rating, specify Fire-Rated at time of order. Check the label before installation — the packaging is the only visible difference.

Frequently Asked Questions — Evolve Stone Universal Sill Ledge

How many linear feet are in one box?
Each box contains 25 linear feet of sill ledge (approximately 15 pieces at 20 inches each). Measure your total sill run, add 10% for miter cuts and waste, divide by 25, and round up to the nearest whole box.
What is the Universal Sill Ledge used for?
The Universal Sill Ledge is a trim piece — not a field stone. It provides a clean, finished bottom edge at the base of any Evolve Stone wainscot run and at window sill applications. The angled top surface sheds water away from the wall.
What colors is the sill ledge available in?
The Universal Sill Ledge is available in all seven Evolve Stone colors: Phantom Shadow, Kodiak Mine, Morning Aspen, Dune Point, Winter Valley, River Clay, and Afternoon Vale — in both Non-Rated and Fire-Rated versions. Order in the same color as your flat panels on the same elevation.
How do I handle corners on the sill run?
Miter the sill ledge at 45 degrees on a standard miter saw. The same piece handles both inside and outside corners — no separate corner sill product is needed. Dry-fit miter cuts before nailing and seal finished joints with a color-matched exterior caulk.
Does the sill ledge require mortar?
No. The Universal Sill Ledge installs with finish nails only — the same method as Evolve Stone flat panels. No mortar, no wire lath, no scratch coat. On exterior applications, nail through the Evolve Rainscreen into the OSB or plywood substrate.
Can the Universal Sill Ledge be used indoors?
Yes. For interior applications, no WRB or rainscreen is required — the sill nails directly to wood sheathing. For fireplace surrounds or any application near heat, specify Fire-Rated at time of order. Non-Rated and Fire-Rated versions look identical; always check the label before installation.
Which way does the drainage angle face?
The angled top surface must face away from the building so water drains outward rather than back toward the wall. Confirm orientation before nailing — both faces can look similar at a glance.

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