Is this actually for a 4x4 post?

Hi Kayla, yes it is for a 4x4 post. We sprayed them black and used them for a fish tank stand and they look great!

what size lumber does this fit for the sides and corner post?

I used 4x4 for corner posts and 2x4 for sides. RTC24 takes 2x4 for corner and sides. Simple planning should take care of any project designs. I used 8 - RTC42 for 8 corners. 4 for table top and 4 for shelf about a foot off the ground. 4-4x4 posts for corners. I used 2x4 I had left over from deck projects for sides. To be honest this was overkill for my 2.5ftX8ft work bench. I also added heavy duty wheels to push my bench around in the garage.

can this be mounted to a concrete foundation wall?

Not easily. I love these ties - simple solution that is sturdy with 4x4 posts. I’m not sure what your set up is but if you were using 3 posts it would work but if you’re mounting to concrete and thinking of removing 2 of the 4x4 - it would not be sturdy

I paced an order for these this morning for 23.00, then i got an email that my order got cancelled. I did not cancel this order. why did it cancel

Orders can be cancelled by the seller or the buyer. The seller probably could not fulfill the order for some reason.

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🔧 Build Stronger, Build Smarter!

PROFESSIONAL GRADE - Trusted by builders and contractors for superior performance.
CORROSION RESISTANCE - Available in ZMAX® coating for enhanced longevity.
UNMATCHED DURABILITY - Engineered to withstand the test of time and elements.
EFFORTLESS INSTALLATION - No angled cuts or fastenings—just a straightforward setup.
VERSATILE COMPATIBILITY - Perfectly fits 2x joists and 4x4 posts for seamless construction.

The Simpson Strong-Tie RTC42 is an 18-gauge galvanized rigid tie corner connector designed for robust 90-degree connections between 2x joists and 4x4 posts. Its innovative design eliminates the need for angled cuts or fastenings, ensuring a stronger and more reliable construction method. With a corrosion-resistant finish, this connector is built to last, making it a favorite among professionals in the construction industry.

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Finish Type	Galvanized or ZMAX ® coating; see Corrosion Information
Unit Count	1.0 Count
Item Depth	4.8 inches
Mounting Type	Corner Mount
Manufacturer	Simpson Strong-Tie
UPC	785577029127 044315325304
Global Trade Identification Number	00044315325304
Part Number	RTC42
Item Weight	0.01 ounces
Product Dimensions	7.05 x 7.05 x 5.13 inches
Item model number	RTC42
Size	1 Each
Style	Modern
Finish	Galvanized or ZMAX ® coating; see Corrosion Information
Item Package Quantity	1
Included Components	Fitting
Batteries Included?	No
Batteries Required?	No

Simpson Strong-Tie RTC42 RTC 18-Gauge Galvanized Rigid Tie Corner for 2X Joist, 4x4 Post

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