Simpson Decorative T Straps and L Straps

Q: Where should I use a T strap versus an L strap?

Use a T strap at intersections where a horizontal beam meets a vertical post, or where two beams cross. They’re perfect for keeping mainframe members tight and aligned. L straps are best at corners—think pergola posts meeting beams at a 90° angle, or the corners of garden structures and outdoor furniture. Together, they cover most right-angle and beam-to-post reinforcement needs.

Simpson Strong-Tie T and L Straps

T and L straps from Simpson Strong-Tie deliver dependable reinforcement at critical joints while adding a sharp, decorative finish to exposed framing. Built from strong ZMAX® galvanized steel with a black powder-coated surface, these connectors stand up to moisture, weather, and the demands of heavy outdoor use.

T straps provide extra rigidity at post-to-beam intersections, keeping vertical and horizontal members firmly tied together. L straps, on the other hand, lock in corners and angled joints, preventing lateral movement or racking. Both options install easily with Outdoor Accents® screws and washers, ensuring a secure hold and a uniform look that ties in with the rest of your project’s hardware.

Decorative T and L Straps for Strong Outdoor Connections

Simpson Strong-Tie Decorative T and L straps combine strength and style for exposed wood framing. Built for visible applications like pergolas, pavilions, gazebos, and custom arbors, these connectors reinforce right-angle and corner joints while adding architectural polish to your structure. Crafted from ZMAX® galvanized steel with a black powder-coated finish, they deliver corrosion resistance without compromising aesthetics. These straps make functional connections look intentional, turning structural hardware into a design feature.

How T and L Straps Strengthen Your Build

T-straps are perfect for reinforcing vertical posts where they meet horizontal beams, providing support against sagging or twisting under load. L straps shine in corner connections, stabilizing angled joints, and distributing weight across the frame. In both cases, these straps prevent movement and add rigidity at critical intersections, especially in large or open outdoor structures exposed to wind and weight.

Aesthetic Value Beyond Structure

Decorative hardware isn’t just about holding lumber together. T and L straps create visual symmetry, giving exposed wood framing crisp, intentional lines. Instead of hiding connections, these straps highlight craftsmanship and add architectural character. For outdoor living spaces designed to impress, they function as both reinforcement and ornamentation.

Built to Withstand Harsh Conditions

Outdoor projects face constant exposure to sun, rain, and seasonal changes. That’s why these straps are made from heavy-gauge ZMAX® galvanized steel for rust resistance and finished with a black powder coat that holds up in the toughest conditions. Whether attached to treated lumber or natural timber, they’re engineered for longevity.

Flexibility Across Different Projects

No two builds are alike, and these straps adapt to a wide range of structures. Contractors rely on T straps for straight-line stability at post-to-beam joints, while L straps fit seamlessly into corners or angled transitions. From backyard pergolas to large-scale pavilions, these connectors bring the same level of structural reinforcement and decorative consistency.

Where to Use T and L Straps

Pergolas and patio covers where post-to-beam stability is critical
Pavilions and gazebos for clean, reinforced corners
Garden arbors, entryways, or decorative structures with visible framing
Timber frames or outdoor kitchens where design and durability intersect
Corners, transitions, or angled beam junctions that need extra support

Installation Tips

Install decorative T and L straps using Simpson Outdoor Accents® structural screws. Optional hex-head washers create a polished, bolted look. Pre-drill dense or edge-prone lumber to avoid splitting and follow spacing patterns for maximum strength. When aligned properly, these straps secure the frame while adding a professional, finished look.

Why Builders Choose Decorative T and L Straps

Made in the USA: Most straps are manufactured domestically, ensuring consistent quality and reliability.
Architectural Appeal: Adds symmetrical lines and visual interest to exposed joints.
Seamless Integration: Matches other Simpson Outdoor Accents hardware, including post bases, joist hangers, knee braces, and fasteners.
Durability Meets Design: Resistant to corrosion, treated lumber, and the wear of outdoor exposure, all while enhancing the style of your structure.

Frequently Asked Questions

Where should I use a T strap versus an L strap?

Use a T strap at intersections where a horizontal beam meets a vertical post, or where two beams cross. They’re perfect for keeping mainframe members tight and aligned. L straps are best at corners—think pergola posts meeting beams at a 90° angle, or the corners of garden structures and outdoor furniture. Together, they cover most right-angle and beam-to-post reinforcement needs.

What sizes do T and L straps come in?

They’re available in multiple lengths to fit common framing dimensions like 4x4 and 6x6 lumber. Larger sizes, like 16-inch T straps, are built for heavy-duty posts and beams in pavilions, patios, and timber frames. Always check specifications to match your lumber size and load requirements.

Can they replace diagonal bracing in a structure?

Not entirely. T and L straps provide rigidity at joints but don’t replace the need for full diagonal bracing in tall or open-sided builds. They’re often used alongside other connectors for complete stability.

Are they made in the USA?

Yes, most Simpson Strong-Tie Outdoor Accents hardware, including decorative straps, is manufactured in the USA, which ensures consistent quality and fast availability.

How do I stop the wood from splitting near strap edges?

Use Simpson structural screws instead of nails, and pre-drill when fastening close to edges on dense hardwoods or old, dry lumber.