The number of trusses needed for a garage depends on several factors such as the size of the garage, construction requirements, its design, local building codes, and the load-bearing requirements of the roof. Typically, for a 24×24 garage with trusses spaced 2 feet apart, you’d typically need around 13 trusses along each side, totaling 26 trusses.

In general, for a 24×24 garage with trusses spaced 24 inches apart, you’d typically need approximately 13 trusses along each side, totaling 26 trusses, while for a 20×20 garage with trusses spaced 24 inches apart, you’d typically need around 11 trusses along each side, totaling 22 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 garage 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 garage is typically measures 24×24 (24 feet wide by 24 feet length). However, other size includes: 30×30 (30 feet wide by 30 feet length), 20×20 (20 feet wide by 20 feet length), 24×30 (24 feet wide by 30 feet length), and 20×30 (20 feet wide by 30 feet length).

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

The quantity of trusses needed for a garage roof only depends on the length of roof not the width, if your garage dimension is 20×30, therefore, you should take 30 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, use the formula truss count = [(roof length × 12)/24)] + 1. For example, how many trusses do I need for a 24×24 garage?, you will need total 26 trusses. Put the length of your garage: truss count = ((24 × 12)/24) + 1 = (288/24) + 1 = 12 + 1 = 13 × 2 = 26 trusses.

In general, at 24 inches of trusses spacing, you’d need around total of 26 trusses for a 24×24 garage, total of 22 trusses for a 20×20 garage, and total of 32 trusses for a 30×30, 24×30, or 20×30 garage.

**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 garage roof is 30-feet long, it will need 16 trusses along each side, totaling 32 trusses.

**How many trusses do i need for a 20×30 garage?**

Typically for a 20×30 garage with trusses spaced 24 inches apart, you’d typically need approximately 16 trusses along each side, totaling 32 trusses. Put the length of your 20×30 garage: truss count = ((30 × 12)/24) + 1 = (360/24) + 1 = 12 + 1 = 16 × 2 = 32 trusses.

**How many trusses do i need for a 24×24 garage?**

Typically for a 24×24 garage with trusses spaced 24 inches apart, you’d typically need approximately 13 trusses along each side, totaling 26 trusses. Put the length of your 24×24 garage: truss count = ((24 × 12)/24) + 1 = (288/24) + 1 = 12 + 1 = 13 × 2 = 26 trusses.

**How many trusses do i need for a 30×30 garage?**

Typically for a 30×30 garage with trusses spaced 24 inches apart, you’d typically need approximately 16 trusses along each side, totaling 32 trusses. Put the length of your 30×30 garage: truss count = ((30 × 12)/24) + 1 = (360/24) + 1 = 12 + 1 = 16 × 2 = 32 trusses.

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

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

**How many trusses do i need for a 24×30 garage?**

Typically for a 24×30 garage with trusses spaced 24 inches apart, you’d typically need approximately 16 trusses along each side, totaling 32 trusses. Put the length of your 24×30 garage: truss count = ((30 × 12)/24) + 1 = (360/24) + 1 = 12 + 1 = 16 × 2 = 32 trusses.

**Conclusions:**

The number of trusses needed for a garage depends on several factors, but however, at 24 inches of truss spacing, you’d need around 26 trusses for a 24×24 garage, 22 trusses for a 20×20 garage, and 32 trusses for a 30×30, 24×30, or 20×30 size garage.