No listed product is a pressure-treated redwood 4×4 post. The closest match is a pressure-treated pine mounting post; the other options are a treated post-top plate, treated pine spindles, a redwood board that is not a 4×4 post, and a teak post. Use the comparison below to identify which option fits your project, and verify dimensions and intended use before buying.
| Product | Best For | Important Difference |
|---|---|---|
| BestNest Treated Pine Post | Outdoor mounting support | Pressure-treated pine, not redwood |
| Waddell Post Top Plate | Finishing a compatible post | Top plate, not a post |
| Treated Pine Spindles | Deck and porch railings | Short balusters, not 4×4 posts |
| VENTRAL Redwood Board | Small craft or wood projects | Listed title and features disagree on dimensions |
| Squared Teak Post | Projects calling for teak | Not redwood or pressure-treated |
BestNest Treated Pine Mounting Post
This 95-inch post is the closest listed match for someone searching for a pressure-treated 4×4 for an outdoor mounting project. Its stated dimensions are 4 by 4 inches, and its material is pressure-treated pine, not redwood. The product description says the treatment is intended to resist weathering, rot, and decay.
Best for: Mounting a birdhouse, feeder, or mailbox, or adding support inside arbor legs. Choose this if the priority is a treated 4×4-style outdoor mounting post rather than redwood species. A limitation is that the product is pine, so it does not meet a requirement for redwood lumber.
Waddell Pressure-Treated Post Top Plate
This is a 4-by-4 post accessory, not a structural 4×4 post. The plate is made from unfinished pine treated with ACQ Type 1 preservative. Its listed retention is 0.25–0.4 pounds per cubic foot, and it has a pre-drilled screw hole designed for Waddell post tops with a specified ¼-20 screw.
Best for: Adding a decorative finish to a compatible post on a porch, deck, fence, or mailbox project. Choose it when you already have a post and need a treated top plate. Avoid choosing it as a substitute for a full-length post; the listed product is only a plate, and its fit details should be checked against the post-top hardware.
Treated Pine Deck Spindles
This set of four turned, sanded pine spindles is intended for decks, porches, gazebos, and exterior railing applications. The listed actual finished dimensions are 3¼ by 3¼ inches, and the stated length is 23¾ inches. The treated surface is described as ready for stain, sealant, or paint.
Best for: Buyers working on short railing balusters rather than posts. The set was selected because it is pressure-treated-style outdoor pine stock for a related deck or porch project. It is not a 4×4 post, and the dimensions and short length make it unsuitable when a full-size support post is required.
VENTRAL Redwood Construction Board
This listing is relevant to the redwood part of the search, but it does not establish that the item is a pressure-treated 4×4. Its title describes a 2-by-4-inch construction redwood board, while the features say the lumber comes pre-cut and pre-sanded to 12-inch sizes. Those descriptions conflict, so confirm the actual dimensions with the seller before planning a cut list.
Best for: A small craft or wood project where a short redwood piece may work. The description says the wood can take paint, stain, and embellishments. Do not select it as a verified 4×4 post: pressure treatment is not stated, and the listing’s size information is inconsistent.
Squared Teak Post
This post is listed as real teak measuring 4 by 4 by 48 inches, with 5.3 board feet. It offers a clearly stated square-post format, but the supplied information does not describe it as redwood or pressure-treated. That difference matters when the project specifications call for a particular wood species or preservative treatment.
Best for: A project that specifically permits or calls for a teak post in these dimensions. It was included as a clearly dimensioned 4×4 alternative, not as a direct match for pressure-treated redwood. Avoid it if your plans require redwood or pressure-treated lumber.
Buying Guide: How to Choose an Outdoor 4×4
Do you need redwood, pressure treatment, or both?
These terms describe different characteristics. Redwood identifies the wood species; pressure-treated describes a preservative treatment applied to lumber. A product can meet one requirement without meeting the other. Check the product description and lumber markings for both if your project requires pressure-treated redwood specifically. None of the five listed products is confirmed to meet both requirements.
Are the dimensions actually 4 by 4 inches?
Compare the stated actual dimensions with the plans, brackets, or post caps you intend to use. Nominal lumber sizes can differ from finished dimensions, and accessory products such as plates and spindles are not substitutes for a full-size post. For the VENTRAL listing, clarify its conflicting size descriptions before ordering.
What will the post support?
Match the product to the job. The BestNest post is described for mounting fixtures and added arbor support. The Waddell item is a decorative top plate, while the treated spindles are for railing applications. For a structural project, follow the project plans and applicable local building requirements rather than assuming a product is suitable based only on its shape or treatment description.
Does the product information confirm outdoor treatment?
Look for explicit wording about pressure treatment and intended outdoor use. The BestNest post and Waddell plate are described as treated for outdoor durability. The teak listing provides species and dimensions but does not state pressure treatment; the VENTRAL listing does not state pressure treatment either.
Frequently Asked Questions
Is any listed product a pressure-treated redwood 4×4?
No. The closest match is the pressure-treated pine BestNest post. The redwood listing does not confirm a 4×4 size or pressure treatment.
Which listed product is closest to a treated 4×4 post?
The BestNest post is listed as a 4-by-4-inch pressure-treated pine mounting post and is 95 inches tall.
Is the Waddell product a complete post?
No. It is a 4-by-4 post-top plate for finishing a compatible post.
Should I use the VENTRAL board as a 4×4?
Not without confirming its dimensions. The title describes a 2-by-4-inch board, while its features give different cut-length information, and pressure treatment is not stated.