Expand Your Outdoor Structure with Ease
- Category: 4x4
- Arm Opening (Interior): 3.61” x 3.61”
- Arm Opening (Exterior): 3.75” x 3.75”
- Arm Length: 7”
- Gauge: 14-gauge Canadian Steel
- Colour: Black
- Fastening Holes: 0.25”
Peaked Roof Calculator

Take advantage of this lumber calculator to help guide you with your peaked roof pergola build from the GRID 30 Collection. Just enter the length/span of lumber (A) to determine the length/span for lumber required for peaked roof (B). Enter the length of lumber (C) to determine the total overall height (D) of your build.
A
What is your starting length/span of lumber?
inch
(0 ft.)B
The Length/Span of lumber will be
0 inch
(0 ft.)C
What is your length/height of lumber?
inch
(0 ft.)D
Overall pergola height will be
0 inch
(0 ft.)
Step-by-Step Tutorials for Easy Setup
Get step-by-step instructions for our durable, modular pergolas. Designed for DIY enthusiasts, our guides make assembly straightforward and satisfying.