The number of trusses needed for a shed depends on several factors such as the size of the shed, construction requirements, its design, local building codes, and the load-bearing requirements of the roof. Typically, for a 12×16 shed with trusses spaced 2 feet apart, you’d typically need around 9 trusses along each side, totaling 18 trusses.

In general, for a 12×16 shed with trusses spaced 24 inches apart, you’d typically need approximately 9 trusses along each side, totaling 18 trusses, while for a 12×12 shed with same trusses spacing, you’d typically need around 7 trusses along each side, totaling 14 trusses.

Trusses are triangular shapes structural frameworks composed of straight members connected at joints. They are commonly used in architecture and engineering to support roofs, bridges, and other structures.

Trusses are designed to efficiently distribute loads and resist forces such as tension and compression. Its triangular shapes, provide stability and strength to the overall structure. Trusses can be made from various materials including wood, steel, and aluminum, depending on the requirements of the project.

The spacing of trusses in a shed depends on various factors, but, however trusses are spaced 24 inches (or 2 feet, or 61 centimeters) or 16 inches (41 centimeters) apart, center to center.

The standard size of a shed is typically measures 12×16 (12 feet wide by 16 feet length). However, other size includes: 12×12 (12 feet wide by 12 feet length), 10×12 (10 feet wide by 12 feet length), 10×10 (10 feet wide by 10 feet length), and 12×20 (12 feet wide by 20 feet length).

**How Many Trusses Do I Need For a shed?**

The quantity of trusses needed for a shed roof only depends on the length of roof not the width, if your shed dimension is 12×16, therefore, you should take 16 feet length or bigger dimension to determine quantity of trusses along each side.

Typically, trusses are spaced approximately 24 inches apart. To determine the exact number of trusses required for a shed, use the formula truss count = [(roof length × 12)/24)] + 1. For example, how many trusses do I need for a 12×16 shed?, you will need total 18 trusses. Put the length of your garage: truss count = ((16 × 12)/24) + 1 = (192/24) + 1 = 8 + 1 = 9 × 2 = 18 trusses.

In general, at 24 inches of trusses spacing, you’d need around total of 18 trusses for a 12×16 shed, total of 12 trusses for a 10×10 shed, total of 22 trusses for a 12×20 shed, and total of 14 trusses for a 10×12, or 12×12 shed.

**Trusses count formula to figure out number of trusses needed**

Truss count formula = ((roof length * 12) / 24) + 1. This is simplest form of this equation is to take the length of your roof and divide it by 2 and then add 1. For example, if your shed roof is 20-feet long, it will need 11 trusses along each side, totaling 22 trusses.

**How many trusses do i need for a 12×16 shed?**

Typically for a 12×16 shed with trusses spaced 24 inches apart, you’d typically need approximately 9 trusses along each side, totaling 18 trusses. Put the length of your 12×16 shed: truss count = ((16 × 12)/24) + 1 = (192/24) + 1 = 8 + 1 = 9 × 2 = 18 trusses.

**How many trusses do i need for a 12×12 shed?**

Typically for a 12×12 shed with trusses spaced 24 inches apart, you’d typically need approximately 7 trusses along each side, totaling 14 trusses. Put the length of your 12×12 shed: truss count = ((12 × 12)/24) + 1 = (144/24) + 1 = 6 + 1 = 7 × 2 = 14 trusses.

**How many trusses do i need for a 10×10 shed?**

Typically for a 10×10 shed with trusses spaced 24 inches apart, you’d typically need approximately 6 trusses along each side, totaling 12 trusses. Put the length of your 10×10 shed: truss count = ((10 × 12)/24) + 1 = (120/24) + 1 = 5 + 1 = 6 × 2 = 12 trusses.

**How many trusses do i need for a 12×20 shed?**

Typically for a 12×20 shed with trusses spaced 24 inches apart, you’d typically need approximately 11 trusses along each side, totaling 22 trusses. Put the length of your 12×20 shed: truss count = ((20 × 12)/24) + 1 = (240/24) + 1 = 10 + 1 = 11 × 2 = 22 trusses.

**How many trusses do i need for a 10×12 shed?**

Typically for a 10×12 shed with trusses spaced 24 inches apart, you’d typically need approximately 7 trusses along each side, totaling 14 trusses. Put the length of your 10×12 shed: truss count = ((12 × 12)/24) + 1 = (144/24) + 1 = 6 + 1 = 7 × 2 = 14 trusses.

**Conclusions:**

The number of trusses needed for a shed depends on several factors, but however, at 24 inches of truss spacing, you’d need around 18 trusses for a 12×16 shed, 22 trusses for a 12×20 shed, and 14 trusses for a 12×12, or 10×12 size shed.