Simpson Outdoor Accents Installation Best Practices

Installing Simpson Strong-Tie Outdoor Accents hardware is a straightforward process, but like any construction project, there are best practices that will make sure the result of your hard work is safe and strong while looking great.

Using the proper Outdoor Accents components (along with the matching structural screws) means that as you add visual appeal, you're also maintaining the integrity of the frame. In the following sections, we'll cover how to plan and build the project for a safe, beautiful result.

Before diving into assembly, it's important to plan out your project and gather the right materials, tools, and timelines. Simpson's Outdoor Accents line makes this easier by offering a range of pre-made connectors and even complete kits, but you'll still want to do some upfront prep beforehand.

Start by finalizing your structure's design  and taking accurate measurements. Because the Outdoor Accents connectors are decorative, you might choose to place them symmetrically or in visible locations that enhance the design's look. Mark out where each connector will go, and ensure you have a suitable connector for each joint. For example, determine if your beams will sit on top of posts (requiring post cap connectors) or bolt to the sides of posts (using T-straps or angles).

Identify all post base locations, corner braces, etc., in your plan and take the time to map these out on your lumber (with pencil marks) to help achieve a balanced, even appearance when it’s time to install them. This is especially important for things like pergola post bases or decorative straps that should line up perfectly across multiple posts. Measure and mark anchor points ahead of time to keep everything aligned. 

Outdoor Accents connectors are designed to work with common lumber sizes, including both nominal lumber (e.g., 4x4, 6x6) and rough-cut timber. 

Be sure you've ordered the correct model for your lumber type (Simpson often provides slightly different part numbers for rough vs. nominal, so double-check the product specs). The good news is the hardware accommodates various lumber dimensions easily – both nominal and rough stock can be used with the right Outdoor Accents connectors.

Also, these connectors are generally suitable for all typical wood species used outdoors, from pressure-treated pine to cedar or redwood. The ZMAX galvanization and powder coat will protect the steel from the chemicals in treated lumber and general moisture, preventing corrosion and premature aging.

One advantage of Simpson's system is that you don't need heavy-duty tools like drill presses or impact wrenches that through-bolting might require. For most Outdoor Accents installations, a standard power drill or impact driver with the appropriate driver bit will do the job. Make sure you have a bit that fits the hex-head Outdoor Accents screws (often a hex-head bit is provided with the screws, or you can use a socket adapter).

A clamp or two can be handy for holding pieces in place while driving screws, preventing them from shifting or falling out. Simpson's installation tips recommend clamping wood-to-wood connections in place, then simply driving the connector screws through the predrilled holes in the hardware. You generally won't need to pre-drill pilot holes (more on that below), but if you're working close to the end of a board, it's smart to have a drill bit for a pilot hole just in case.

Also have a hammer and any required anchors if you're attaching post bases to concrete (which might involve drilling into concrete and using wedge anchors or concrete screws – follow the post base instructions).

Gather all the Outdoor Accents pieces you'll need: post bases, angles, straps, decorative washers, etc., along with the Outdoor Accents structural screws that go with them. Always use the matching Simpson Strong-Tie fasteners that are specified for Outdoor Accents.

These screws are specially designed to fit the connector holes and to provide the necessary strength (and the right look when used with the washers). Using random generic screws or bolts could result in a weaker connection or even damage the decorative coating.

Overall, Simpson's guidance is clear: use the designated Outdoor Accents fasteners for best results, as they match the finish and meet the performance specs of the connectors. If you purchased an Outdoor Accents kit, the required screws and washers will be included in the box, simplifying this step.

One of the great things about the Outdoor Accents system is how easy it is to install compared to traditional through-bolting or lag screws.

Here are the key best practices to follow when putting it all together:

Outdoor Accents connectors use a patented hex-head washer in combination with a structural wood screw. This pair is what gives the appearance of a chunky bolt with a washer, but it installs just like a regular screw.

When you place the washer in the connector's hole and drive the screw through it, the head of the screw tightens onto the washer, creating the look of a bolted connection. It's crucial to use this combo correctly: put the washer in place first, then drive the screw through the washer's center. Tighten until the screw head is flush and the washer is snug against the connector.

The result is a secure, load-rated connection with an attractive finish.

This system eliminates a lot of hassle since there is no drilling big bolt holes, no wrenching nuts and bolts together. Just drill in the screw and you're done. Make sure you have enough washers for each screw hole (often Simpson sells them in packs or they come with the screws/kits).

No Pre-Drilling (Usually)

The Simpson structural screws provided for Outdoor Accents are self-drilling, meaning their tips and threads are designed to cut into the wood without a pilot hole. In most cases, you do not need to pre-drill holes in the lumber for these screws. This speeds up installation and ensures the screws grip tightly.

However, there are a couple of limitations. If you're working very close to the end of a board (within an inch or so), or using extremely hardwood lumber, a small pilot hole might help prevent splitting. The general tip is to pre-drill if you're near wood ends to avoid splitting.

Otherwise, you can trust the self-tapping design. If you ever feel a screw binding or the wood splitting, back it out and drill a pilot hole, or try a slightly smaller diameter screw if appropriate. But in typical SPF or pressure-treated lumber, you'll rarely need to do this.

Driving the Connectors

When attaching an Outdoor Accents connector (such as an angle, strap, or hanger), it often helps to secure the connector to one member first, then attach to the mating member.

For example, with a post base, you would anchor the base to the concrete or deck surface first, then set your wooden post in and screw the side holes. Or with a joist hanger, you might attach the hanger to the beam, then set the joist in and drive the nails/screws into the joist. With the decorative hardware, the principle is similar. Often, it's easiest to have someone help hold or clamp pieces in position.

Once clamped, drive the screws through each pre-punched hole in the metal connector. A power impact driver is handy here as it provides high torque to drive the screws fully home. Drive each screw until the washer is tight and flush – this usually means the screw head will sink into the washer recess and stop.

Each Simpson connector will have a certain number of fastener holes, all of which contribute to its rated strength. To achieve the advertised loads (and code compliance), you should install fasteners in every hole designated.

For instance, a post base might have four screw holes on the sides – put a screw with a washer in each. A T-strap could have 6 or 8 holes; use them all. This ensures the load is appropriately distributed and the connector performs as intended. The hardware and fasteners are relatively inexpensive compared to the lumber and labor of your project, so there's no sense in skimping on a few screws. Using the full amount also guarantees the connector won't flex or shift under load.

Remember, these parts have been tested as a system, so follow the Simpson installation instructions for fastener patterns and counts. If a hole is not meant to be filled (some connectors have optional holes), the instructions will say so; otherwise, assume every hole gets a screw or bolt.

Stick with Simpson Outdoor Accents screws and washers for all connections. They are made of coated, corrosion-resistant steel compatible with the ZMAX galvanization on the connectors. Using the wrong type of screw (e.g., a plain steel lag bolt) could not only look odd but also introduce a point of corrosion if the metals react or if the coatings are different.

Simpson's matching fasteners ensure a consistent look (black heads) and materials that won't cause rust streaks or weaken the connector over time. Also, by using the Simpson screws, you maintain the product warranty and load rating – if you substitute others, the load values might no longer apply.

Once all your connectors are installed and the structure is up, step back and inspect. All the hardware should be tight-fitting, and the structure should feel rigid. If anything is loose, add any missing fasteners or tighten up as needed. One nice thing: because of the decorative nature of Outdoor Accents, you don't need to hide these connectors – they are meant to be visible.

If you got a bit scuffed during installation (occasionally a drill bit might scratch the black coating), you can touch up the tiny marks with black enamel paint to prevent any exposed steel from rusting. However, significant scratches are uncommon ifyou're careful. The hardware is ready for full exposure – it's made to handle sun, rain, and more without additional finishing. Unlike raw steel brackets that you'd have to paint or upkeep, these powder-coated pieces are maintenance-free. Just keep them clean of debris and enjoy the loo

To summarize the core installation best practices, keep these tips in mind:

1. Clamp and Drive:Position connectors and clamp pieces in place, then drive the screws – this keeps everything aligned.

2. No Pre-Drill Needed: The provided structural screws are self-tapping; generally, you can drive them directly without pilot holes. Pre-drill only near board ends if needed to prevent splits.

3. Use Matching Fasteners: Always install the Simpson structural screws with the hex-head washers for each connector. This is the only approved fastener combo for Outdoor Accents hardware and ensures the rated strength.

4. Fill All Holes: For full strength, put a screw (with a washer) in every connector hole as instructed. Don't leave any empty unless the instructions say to.

5. Tighten Snugly: Drive screws until the washer is flush and the connection is tight, but avoid over-tightening. Each decorative connector should sit firmly against the wood.

6. Protect the Finish: Handle the connectors with care to avoid scratches. If you do scratch through the coating, touch it up to maintain corrosion resistance. The black powder coat is durable, and once installed, it shields the steel from the weather long-term.

By following these practices, your Outdoor Accents installation will not only look professional. Still, it will also perform to its full structural potential – giving you a safe structure that meets building codes (remember, Simpson's hardware is code-listed and exceeds many minimum load requirements).