Joist Spacing and Blocking 101
Joist Spacing and Blocking
Quick Reference Guide
TimberTech.com | 2Questions: 1.877.275.2935
ESTIMATED TIME:
1 Hour*
PREREQUISITE 1: Deck plan (size, layout) - including railing
PREREQUISITE 2: Pre-existing secured framing attached to the house
STEPS:
1. Checking your framing
2. Measuring joist spacing
3. Installing required blocking
4. Applying joist tape
NOTE! There are several framing configurations; if you’re unsure whether
your system is sound and built to code, consult a deck building professional.
RED
*Estimate based on a 12'x12' deck. Installation time may vary based on the design complexity and experience of the installer.
TOOLS NEEDED:
• Safety glasses
• String line (to check framing is even along tops
• Hammer or mallet
• Replacement lumber
(if required, generally at least 2” x 8”)
• Drill
• Screws (Exterior grade wood screws)
• Miter saw/ circular saw
• Tape measure
• Level (4' or longer)
• TimberTech ProTac joist tape
RECOMMENDED MANPOWER:
1 Person*
Considerations and Tools