Close architectural view of a projecting stone window sill

A durable base for every opening

Window Sills

Name: Window Sills
Brand: Landmark Stone

Cast stone sill profiles for windows, openings, veneer transitions, and coordinated façade surrounds.

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Material programArchitectural precast

Applications6 starting points

Catalogue depth17+ references

Project optionsSize · finish · returns

Architectural

Understand the element before it reaches the drawing set.

Window sills protect the base of an opening while establishing shadow, projection, and proportion across the façade. The Landmark catalogue includes dozens of profiles with different slopes, drips, returns, heights, and decorative faces.

Standard references make early selection easier, while lengths, end conditions, color, texture, and installation details can be coordinated to the project.

Why it works

Dozens of catalog profiles
Sloped shedding surfaces
Project-specific lengths
Return and end conditions
Coordinated mouldings
Cast stone and lightweight options

Applications

Where Window Sills belongs.

A starting point for design conversations. Project conditions, engineering, attachment, and local requirements should be reviewed for the final assembly.

01Window openings

02Veneer transitions

03Storefront surrounds

04Residential façades

05Garden walls

06Custom openings

Interactive catalogue

Explore every reference—not just a code.

Choose a family, search model references, study the form from multiple angles, test digital finishes, and hold up to three options for comparison. Final geometry and dimensions remain tied to the official catalogue and project review.

Interactive 3D material studyWindow Sills

17 catalogue references · 1 family · four digital finish studies

Building the 3D material study…

Live WebGL geometry

Selected sill profilesS-11

Drag to orbit · scroll to zoom · use the controls for exact views

RotateElevation

Digital finish studyAlpine White · Limestone

Real-time 3D geometry for design review—not a dimensional shop drawing. Procedural forms, screen color, and texture are approximate; confirm final geometry and finish with catalogue details, drawings, and a physical sample.

Find a model in this family

Selected reference

S-11Selected sill profiles

Suitable conversations: Window openings · Veneer transitions · Storefront surrounds
Coordinate before release: Final dimensions, returns, attachment, tolerances, color, and texture.

Comparison tray · 0/3 selected

Select two or three references above to compare them in 3D.

Open official catalogue Discuss S-11

Architectural precastDozens of catalog profiles · Sloped shedding surfaces · Project-specific lengthsCustom profiles welcome

12 project images

See Window Sills across more built conditions.

This product-focused library brings together installed work, close details, scale, junctions, and finish character. Select any image to study it at a larger size.

Tall opening finished with a projecting cast-stone sill

Close view of a rounded lightweight sill return

Multiple windows with coordinated precast sills

Simple sill and surround on a contemporary facade

Close view of the sill projection beneath a dark window frame

Sill coordinated with a lower wall panel

Residential facade with repeated projecting sills

Arched opening with a coordinated lightweight sill

Window surround and sill viewed at close range

Tall window with a complete sill and jamb assembly

Finished architectural sill in warm natural light

From reference to release

What Landmark Stone needs to resolve the piece.

A catalogue code is a useful starting point, not the whole specification. Send the available project information and the team can help close the gaps before fabrication.

Start a Window Sills review

01
Drawings & dimensions
Plans, elevations, sections, field measurements, or a marked-up sketch.
02
Reference & design intent
A catalogue model, inspiration image, or profile that establishes the desired character.
03
Quantity & configuration
Piece counts, linear footage, corners, radii, returns, openings, and repeated conditions.
04
Color & surface
Target color, texture, adjacent materials, and the light conditions used for sample approval.
05
Interface & schedule
Substrate, attachment assumptions, delivery sequence, site access, and required milestone dates.

Common planning questions

Useful answers before you request pricing.

Can catalogue references be customized?

Yes. Catalogue families establish proportion and design direction. Final size, length, returns, radius conditions, color, texture, and project interfaces can be reviewed for the selected application.

What should be included with a quote request?

Send the model or design reference, dimensioned drawings when available, quantities, project location, desired finish, and schedule. Early sketches are also welcome when details are still being developed.

How are color and texture approved?

Digital finish studies help narrow the direction, but physical samples should be reviewed beside adjacent materials and in the project’s actual light before final approval.

Are attachment and installation requirements included?

The final assembly depends on piece geometry, substrate, loading, access, and local requirements. These conditions should be coordinated with the project team before release.

Technical review

Planning information in one place.

Use these values for early material evaluation. Confirm final dimensions, tolerances, engineering, finish samples, and installation requirements with the Landmark Stone team.

Downloads

Window sills catalog

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