Gravestone engraving: how letters get cut into granite

If you've ever run a finger along the letters on a granite headstone, you've felt the result of a surprisingly precise process. On a modern granite stone, those letters were very likely cut by a stream of abrasive blown through a rubber stencil. A Vermont Granite Museum history calls sandblasting "a common operation in the shops of monument retailers," and it's the same method used when a family later adds a final date.

This guide walks through gravestone engraving step by step: how a design becomes a stencil, how the stone is cut, how sandblasted letters differ from hand-cut ones, and what happens when the work is done in the cemetery instead of the shop. Knowing the steps makes it much easier to ask a monument company the right questions.

From chisels to sandblasting

For most of history, letters were cut freehand. A Vermont Granite Museum history of the trade describes early stonecutters working "using a hand hammer and lettering chisels," sometimes without a full plan. Some, it notes, "ran out of space, having then to use an abbreviation or reduced size letters" (Times Argus / Vermont Granite Museum).

That changed in the twentieth century. According to the same history, sandblasting was first tested in Barre, Vermont, "circa 1915," took years to perfect, and when it entered the granite industry in a major way "it revolutionized letter cutting and shape carving."

Sandblasting means cutting stone with a granular abrasive blown at high speed by compressed air, up to 100 psi in the museum's description. The key detail is simple: "The abrasive cuts only the stone surface not covered by a stencil." Everything about modern gravestone engraving follows from that.

Gravestone engraving, step by step

The museum history lays out the classic shop sequence. The tools have changed since then, mostly in how the stencil gets cut, but the order hasn't.

1. The design and the proof

An artist or draftsman draws the design, then prepares a full-size drawing that is "shown to the customer for approval." Today that proof is often a computer layout, but its job is the same: it's the last chance to catch a misspelled name, a wrong date or a layout that doesn't fit. Check every character before you sign off. Our inscription text builder and font preview can help you draft the wording and see a style before you meet the shop.

2. The stencil goes on the stone

A sheet of rubber stencil is fixed to the polished face. In the museum's account, the stencil cutter "cemented a sheet rubber stencil to the stone, using a rubber mallet" so it would stick evenly. Suppliers still sell coatings for this, called stencil fillers. 3M lists one filler for polished surfaces and another for axed or frosted ones (Granite Sales & Supply).

3. The letters are cut out of the stencil

Traditionally, the full-size drawing was laid face down on the rubber and rubbed so the lines transferred, then cut along them with "a very sharp stencil knife." Many shops now cut the stencil on a computer plotter instead. The museum history notes that computer-controlled stencil cutters were being sold in Barre in the early 2000s, built on equipment from makers such as Gerber. We cover the stencil itself in more depth in our post on sandblast stencil for headstones.

The cut-out letters are peeled away, leaving bare granite exactly where the inscription will go.

4. The stone is blasted

The blaster aims the nozzle across the stencil and the abrasive cuts into every opening. For flat lettering of names and dates, the museum history says shops used silicon carbide, and "today with aluminum oxide abrasive." The rubber around each letter takes the blast and protects the polished stone.

5. The stencil comes off

"Finally, all the stencil portions were removed and the cement was cleaned off." What's left is the finished inscription cut into the stone. Some families choose to have letters painted or gilded for extra contrast. That's a finishing choice, so ask your monument company what it offers and how it holds up.

Sandblasted vs hand-cut letters

You can often tell the two apart. The museum history puts it plainly: "Sandblast letters do not have as sharp and well-defined edges as hand-cut letters and the bottom is a more rounded U-shape." Hand-cut letters have crisper edges. The edges of sandblasted letters can be sharpened by hand, the history adds, but "the practiced eye can still distinguish the two."

This matters most when you're adding to a stone. If the original letters were hand-cut, new sandblasted letters may look slightly different up close, even in the same style. A good shop will tell you what to expect before the work starts.

Flat lettering vs shape carving

Not everything on a headstone is cut the same way.

• Flat carving is how names, dates and outlines are cut: two-dimensional lettering blasted through a stencil with a hard abrasive.
• Shape carving is three-dimensional ornament: flowers, leaves, vines, hands and religious symbols. The museum history says it's done with steel shot, in "two or more passes." Between passes, pieces of stencil are glued back on to protect finished areas, so the carver builds depth layer by layer.

The museum history says the best shape carving "takes great skill and long training." If you want carved ornament, ask to see examples of the shop's own work. If you're weighing methods for the lettering itself, our post on sandblasting vs laser etching compares how each holds up.

In the shop or in the cemetery

When a headstone is new, the lettering can be done in the shop before the stone is set. The museum history notes that many monument retailers "buy basic monuments wholesale" from granite manufacturers and then add names, dates and carvings themselves.

Adding a date to a stone that's already standing is a different job. The same history explains that the need to add a date of death to an erected monument "led to the design of cemetery sandblast units," with a portable air compressor, a portable blast generator and a sandblast curtain to contain the dust. Our guide to on-site headstone engraving covers what that visit looks like, and the cost of adding an inscription covers what drives the price.

What to ask before engraving starts

• Can I see a full-size or to-scale proof, and who signs it off?
• Will the letters be sandblasted or hand-cut?
• If you're adding to an existing stone, how will you match the original lettering?
• Will the new letters be painted or left natural?
• Is the work done in your shop or at the cemetery?

Matching the letters already on the stone

The hardest gravestone engraving job isn't a new stone. It's adding a final date years later, when the new letters have to match lettering cut by someone else, often with no original file. Monumize was built for that step. The monument shop photographs the stone with a phone, Monumize measures the existing letters and suggests a matching font, height and spacing, and the shop gets a to-scale cut file for its stencil plotter for $49 per job. If you're planning a second date, start with how to add a second date to a headstone, or see how it works.

Sources

• Paul Wood, Vermont Granite Museum, The fine art of cutting granite with sand, Times Argus: history of sandblasting, the shop process, abrasives, letter profiles, shape carving and cemetery units.
• Granite Sales & Supply, 3M Scotch Brand Monument Stencils and Fillers: stencil fillers for polished and frosted surfaces.