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Plates 10 products

Sierra Steel Timber Truss Plates for 8"–12" Wide Timbers

The Sierra Collection is our largest line of timber truss plates, for timbers 8" to 12" wide, made for big beams and great rooms. Its plates carry a double row of bolt holes and are 8" wide along the truss's perimeter timbers and 6" wide on webs like king posts and struts, in proportion with heavy timber framing. The smallest size is an actual width: a Sierra plate won't fit a surfaced 8x8, which is only 7 1/2" wide.

Every plate a truss needs is here: king post, peak, heel, collar tie, strut, fan, and strut fan truss plates, plus T, corner, and splice plates. Each is laser cut from 3/16" or 1/4" steel at roof pitches from 3/12 to 12/12, with 11/16" holes for 5/8" bolts unless you choose another size. Plates ship unfinished; add matte black powder coating in the cart. Shipping is free in the lower 48 states.

Not sure which plates you need? See how to plan your truss. Need a size or angle this collection doesn't make? Design your own king post, heel, or strut plate online, or see every custom truss plate.

01 In a truss

Where each plate goes

Every plate on the drawing is a link to it. Pick a truss type to see the plates it takes.

Truss
King post with struts truss with Sierra plates, drawn from the cutting files
King post truss with Sierra plates, drawn from the cutting files
Struts, no king post truss with Sierra plates, drawn from the cutting files
Open truss with Sierra plates, drawn from the cutting files
Raised tie beam truss with Sierra plates, drawn from the cutting files

One truss needs

Counts are for both faces: plates go on in pairs.

One truss needs

Counts are for both faces: plates go on in pairs.

One truss needs

Counts are for both faces: plates go on in pairs.

One truss needs

Counts are for both faces: plates go on in pairs.

One truss needs

Counts are for both faces: plates go on in pairs.

02 Plates

Every Sierra plate

Drawn to one scale from the cutting files; plates that come in pitches are shown at 12/12.

03 Heel

Heel plate or collar tie plate?

A rafter and a tie beam meet in one of two ways, and each takes its own plate.

04 Collections

Six collections, drawn to one scale.

Each collection’s king post truss plate at 12/12, from its cutting file. Each collection fits a range of timber widths.

12" at this scale.

Heel plate or collar tie plate?

How do the rafter and the tie beam meet in your truss?