INSTAGRAM
FOR ARCHITECTS & LANDSCAPE ARCHITECTS

Specify with
confidence

Everything you need to specify authentic Fitzwilliam granite into your next project — from complimentary samples to ready-to-use CSI specification language.

WHY SPECIFY FITZWILLIAM GRANITE

The stone your clients will
remember forever

Authentic antique granite carries a character that no manufactured or freshly quarried stone can replicate. The weathering, the lichen, the natural split face — these are the result of nearly two centuries of New England climate exposure at Webb Hill Quarry in Fitzwilliam, NH.

When your clients ask what makes their project different, the answer is in the stone. Documented by the U.S. Geological Survey as active since before 1829, Fitzwilliam granite is a material with genuine provenance — and that story adds value to every project it touches.

LABORATORY TESTED

ASTM C127 and ASTM D5312 tested by GeoTesting Express. 0.02% mass loss after 40 freeze-thaw cycles. 0.24% water absorption.

DOCUMENTED PROVENANCE

Webb Hill Quarry documented by the U.S. Geological Survey (Bulletin 738, 1923) as active since before 1829. A primary source your clients can point to.

DIRECT COMMUNICATION

No distributors. No middlemen. When you contact Fitzwilliam Granite, you speak directly with the people who know this stone.

NEW ENGLAND DELIVERY

Delivering throughout all six New England states — NH, VT, ME, MA, CT, RI. Consistent availability for projects of any scale.

READY-TO-USE SPEC LANGUAGE

CSI MasterFormat specification language ready to insert directly into your project documents. We make specifying our stone effortless.

LABORATORY TESTED PERFORMANCE DATA

Technical Specifications

Tested by GeoTesting Express — an independent, accredited materials testing laboratory.

ROCK CLASSIFICATION
Granite (Igneous)
Muscovite-biotite granite · Light bluish gray · Fine even-grained
WATER ABSORPTION
0.24%
ASTM C127 · GeoTesting Express · May 2025
BULK SPECIFIC GRAVITY
2.634
ASTM C127 · GeoTesting Express · May 2025
APPARENT SPECIFIC GRAVITY
2.651
ASTM C127 · GeoTesting Express · May 2025
FREEZE-THAW MASS LOSS
0.02% — 40 cycles
ASTM D5312 · GeoTesting Express · May–July 2025 · No visible changes
BULK UNIT WEIGHT
164 pcf
ASTM D5312 · GeoTesting Express · May–July 2025
HARDNESS (MOHS)
6 – 7
Typical for granite
SURFACE FINISH
Hand-Split / Natural Weathered
Natural antique patina · Inherent slip resistance
Compressive strength, modulus of rupture, and abrasion resistance testing currently in progress.
Contact us for the most current data sheet or project-specific consultation.
CSI MASTERFORMAT SPECIFICATION LANGUAGE

Ready to Specify

Copy and insert the applicable language directly into your project documents. Need custom specification language for a specific application? Contact us and we’ll provide tailored text within one business day.

SECTION 32 31 13 — STONE WALL SYSTEMS
PART 2 — PRODUCTS

2.01 STONE MATERIALS

A. Wall Stone: Authentic hand-split antique granite, naturally weathered, as supplied by Fitzwilliam Granite Company, Fitzwilliam, NH. Stone shall exhibit natural split face and weathered patina consistent with previously mined New England granite. Substitutions: Not permitted without written approval of the Architect.

B. Steps / Treads: Antique hand-split granite step treads as supplied by Fitzwilliam Granite Company, Fitzwilliam, NH. Treads shall have natural split top surface with tonal variation consistent with weathered New England granite. Dimensions as indicated on drawings.

PART 3 — EXECUTION

3.01 SOURCE QUALITY CONTROL

A. Obtain all granite from a single source: Fitzwilliam Granite Company, Fitzwilliam, NH, (603) 850-3630. Material samples shall be approved by Architect prior to delivery.

Need custom specification language for a different application — flagging, boulders, posts, or custom pieces? Contact us directly at sales@fitzwilliamgranite.com and we’ll provide tailored CSI language within one business day.

FULL SPECIFICATION PACKAGE

Everything you need
in one document

Our architect specification package contains everything required to specify Fitzwilliam granite into your projects — from technical data to CSI language to project photography.

Company overview & product differentiators
Full product range with dimensions & applications
Laboratory tested technical data (ASTM C127 & D5312)
Ready-to-use CSI MasterFormat specification language
Project gallery — installed applications
Ordering process & lead times
Direct contact information
REQUEST SPEC PACKAGE

Architect Specification Package

A complete technical document covering products, performance data, CSI language, and project photography.

REQUEST BY EMAIL

Request a complimentary sample

Nothing communicates the quality of hand-split antique granite like holding it in your hands. We’ll ship sample chips of our most popular stone directly to your office — complimentary, no obligation.

Complimentary NO COST · NO OBLIGATION
Delivered WITHIN ONE WEEK · NEW ENGLAND
Multiple Finishes WALL STONE · STEPS · FLAGGING
REQUEST A SAMPLE

Speak directly with
someone who knows this stone

No call centers. No distributors. When you contact us, you speak with the people at the quarry.

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