The Traditional Wooden Garden Pergola
Tired of seeing low quality pergolas that look flimsy? Want a structure that will really last decades? We have been the leaders in this industry for many years because we get it. We are here to support you and make your plans a reality - without wasting your time. From design & sizing, to building & installing, reach out at any point to see how easy it is to make your vision possible.
Check out the tabs above for specific information. We can customize your structure and build any size you need. Let us know how we can help.
Specifications has the following sections, any of which you may go to directly by clicking on it:
DIMENSIONS & DRAWINGS (PROVIDED PRIOR TO CONSTRUCTION)
When we receive any Pergola order, we will provide you with a detailed set of drawings based on the options and sizes chosen. The drawings will clearly show all the details and dimensions from 3 different angles. They are an excellent tool for you to double check everything to be sure it is exactly as you'd like before it is built. Drawings are emailed within 3 business days and we'll revise your drawings as needed to make sure all details and sizing issues are perfected prior to beginning construction.
Below are some examples of drawings sent to prior customers:
Corner posts are 5 1/2" by 5 1/2" (standard sized 6x6s) and are recessed 12" in from roof dimensions (This can be adjusted to meet your needs just let us know).
Roof support timbers (lintels) and rafters are 1 7/8" x 5 3/4". If you prefer a different sizing or style write what you would like in the comments section or contact us.
Posts normally ship 9' long. 9 posts make the top of the roof 9' also and give you an 8' 4" clearance ("ceiling height") under the rafters. About 90% of our pergola customers go with the default 9' post height. If you'd like your pergola taller or shorter, just select Other Height and write in what you would like in the comments section.
The maximum roof size is 20' in either direction with a 4 post structure. The maximum span (with the standard timber sizes mentioned above) is 18' 2 1/2" on center between posts. Structures over 20' in any direction are built with an additional post to support roofs between 20 and 40 feet. For example, a 30' x 20' free standing pergola has 6 posts.
Forever Redwood Pergola kits are completely assembled in the shop prior to shipping to be certain everything fits together perfectly. All timbers are notched into one another to increase structural strength and to lock all your pergolas timbers in place so they will never sag, twist or move. There are hundreds of notches in the larger pergolas. Full notching is rarely practiced because it is labor intensive, but it is one of the secrets to a long lasting beautiful pergola.
All assembly hardware is included and is stainless steel.
|Pergola (Roof) Size (ft)||Approx. weight|
|10 x 10||705 lbs.|
|10 x 12||795 lbs.|
|10 x 14||885 lbs.|
|10 x 15||930 lbs.|
|10 x 16||975 lbs.|
|10 x 18||1065 lbs.|
|10 x 20||1155 lbs.|
|12 x 12||903 lbs.|
|12 x 14||1011 lbs.|
|12 x 15||1065 lbs.|
|12 x 16||1119 lbs.|
|12 x 18||1227 lbs.|
|12 x 20||1335 lbs.|
|Pergola (Roof) Size (ft)||Approx. weight|
|14 x 14||1137 lbs.|
|14 x 16||1263 lbs.|
|14 x 18||1389 lbs.|
|14 x 20||1515 lbs.|
|15 x 15||1268 lbs.|
|15 x 18||1470 lbs.|
|15 x 20||1605 lbs.|
|16 x 16||1407 lbs.|
|16 x 18||1551 lbs.|
|16 x 20||1695 lbs.|
|18 x 18||1713 lbs.|
|18 x 20||1875 lbs.|
|20 x 20||2055 lbs.|
For additional long-term structural strength, we add solid timber blocking in-between the dual support timbers as shown in the drawing below. With this blocking, the dual supports are in effect converted into one solid 5 3/4 inch x 61/2 inch or 7 1/4 inch x 6 1/2 inch timber as shown below:
Photo Series: Transforming Undeveloped Ground in to a Garden Pergola
Assembly Instructions for: Wooden Garden Pergolas
Assembly Instructions for: How to Anchor Your Pergola
All You Need is a Few Tools and a Friend
Assembly is best done by two people and usually takes about half a day to a day, depending on size. Pergolas need a ratchet wrench, a hammer and a ladder to put them together. In some cases you might need a drill to attach the posts into concrete. As with all our products, we preassemble pergolas in our shop to ensure everything fits together. All hardware is included and all parts are clearly labeled before it is shipped. We also include detailed step-by-step instructions.
Take a look at our assembly instructions below for specific details. If you plan to pour concrete to hold the posts, the project will require an additional half day prior to assembly. Please do the concrete pour a few days prior to assembly to allow the concrete to cure.
Special talent is not required to re-assemble our pergolas. But, if you would like help, just let us know. We have our own team for installations in California, Nevada and Southern Arizona and a network of local contractors we recommend for farther afield.
Care: Your Forever Redwood Furniture will last for decades in year-round weather without maintenance.
Depending on the wood grade you choose, even with harsh year-round outdoor conditions, you can expect your furniture to last from ten to forty years without maintenance of any kind.
Being outside year round is rough on any woods finish. The surface absorbs UV rays, pollution, constant variations in moisture and temperature and it also oxidizes. This is why most wood just does not hold up and the surface color slowly changes towards a silver patina over the years. But, with Forever Redwood, you dont have to worry. The silver patina is surface deep only (less than 1/64") and is not indicative of decay. Your set will last decades and is not compromised in any way by the surface color change. For example, we keep our display items as is without refinishing to show off this natural aging (we like the patina!).
Although Forever Redwood is maintenance-free, we recommended you take a few minutes as needed to clean by either hosing down and/or brushing/dusting away accumulated debris (no soap or chemicals needed). If you'd like to keep your set looking its best for decades, please go to: Care and Finish
Keep the colors looking vibrant for decades
A quick power washing every 5 to 10 years clears away the accumulated grim, UV surface burning and the old sealant in a few minutes. When power washing be careful not to spray close to the surface or you may cut into the grain of the wood. Once dry, go over any rough spots to smooth out and ready for sealing. Youll need $2 and 10 minutes to do it. Pick up 2 sheets of sandpaper (one 100 grit and one 220 grit). Go over the spots with 100 grit for ten strokes or so and dust off. Then do the same with the fine 220 grit. Redwood sands easily. Dust off and youre ready for sealing.
For best results, sand in the direction of the grain (same direction of the growth lines in the wood). For example, on a picnic tabletop, sand in the lengthwise direction of the boards. After sanding, choose any stain/sealant you like. Redwood takes well to most.
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