What size joist hanger do I need?

Match hanger to joist size. A 2x8 joist requires a 2x8 hanger (like Simpson LUS28). No gaps or bent flanges.

Only Simpson SD structural screws or equivalent code-approved screws. Never deck, drywall, or standard wood screws.

Hardware

Connectors

Simpson Strong-Tie

$2-$15 each

Joist Hangers for Structural Deck and Floor Framing

Joist hangers are galvanized steel connectors that support floor joists, deck joists, and rafters where they meet beams or ledger boards. They transfer loads directly through nailed flanges, providing a code-approved connection far stronger than toe-nailing.

Key Features

Galvanized steel corrosion resistance
Code-approved load ratings
Sizes for 2x4 through 2x14
Top-flange and face-mount styles
ZMAX coating for treated lumber

Specifications

Material: Galvanized steel (G90 or ZMAX) | Sizes: 2x4 through 2x14 | Models: LUS

HUS

HU series | Capacity: 400 to 2100+ lbs | Fasteners: 10d joist hanger nails or SD screws

Best For

Deck joist installation

Floor framing systems

Header and trimmer connections

Stair carriage support

Compatible Materials

Dimensional lumber

Pressure-treated lumber

LVL joists

I-joists (special hangers)

Glulam beams

Pros & Cons

Pros

✓ Dramatically stronger than toe-nailing
✓ Published load ratings
✓ Required by code for most joists
✓ Easy visual inspection

Cons

✗ Must use specified fasteners
✗ Wrong size reduces capacity
✗ Difficult to nail in tight spaces

Installation Tips

Install flush to top of beam. Fill every nail hole with specified nails or structural screws. Never use deck or drywall screws. Use ZMAX with treated lumber.