does it work for wood?

Yes, the TCHD2L2S3BTS works for Wood.

How do you identify what full tension is on the springs? How many turns? What's the best way to identify this?

No idea, what I did was to set the tension, by trial and error, so that the door won't close too slow, to allow pets to run out or too fast to prevent door slamming and breaking other parts

I have a double trex aluminum gate attaching to 4x4 posts covered with trex vinyl post. Will these hinges work for my setup?

A more appropriate hinge would be the TCHD2L2S3. The TCHD2L2S3 has wider leafs so that the screws are spaced farther apart to reduce stress on the vinyl to prevent the stress pulling the screws out. This hinge can work if the aluminum is sheathed very snuggly by the vinyl, but you'd need to be able to confirm that before going with this model of hinge.

Tchd1l2s3bts shows mounting holes in the picture, however the diagram shows 3 mounting holes. which one is correct? this is a soft close?

There are 3 mounting holes on each side. The soft close depends on how you set the spring tension.

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D&D TCHD1AL2S3BTS TruClose Heavy Duty Gate Hinge Square Gates, 2 pcs

D&D TCHD1AL2S3BTS TruClose Heavy Duty Gate Hinge Square Gates, 2 pcs

Product ID: 124994129

Details

Brand
D&D
Color
Black
Finish Type
Unfinished
Hole Count
4
Material
Industrial
Mounting Type
Door Mount

🔩Supports metal gates up to 154 lbs

⚙️Patented tension adjustability

🛡️Industrial-strength polymer, rust-proof

RM570

Duties & taxes included

In stock

Sold byAmazon MalaysiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Elevate your gate game with precision and durability that never quits!

BUILT TO ENDURE - Industrial-strength polymer resists rust, sagging, and binding—engineered to last a lifetime.
SAFETY FIRST DESIGN - Trusted for high-traffic and safety-critical gates around pools, daycares, and pets.
PERFECT FIT FOR METAL - Specifically crafted for square metal gates and posts with adjustable alignment legs.
COMPLETE INSTALLATION KIT - Includes two hinges, mounting brackets, and stainless steel screws for hassle-free setup.
PRECISION TENSION CONTROL - Easily customize closing speed with patented tension system for flawless gate operation.

D&D Technologies TruClose Heavy Duty Gate Hinges deliver industry-leading tension adjustability and unmatched durability with advanced polymer technology. Designed for metal gates up to 154 pounds, these hinges ensure smooth, self-closing action and long-lasting performance without rust or sag. Ideal for safety-sensitive environments, they come complete with mounting hardware for easy installation.

Specifications

ASIN	B07QDXRBZQ
Best Sellers Rank	#40,591 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #17 in Gate Hinges
Brand Name	D&D TECHNOLOGIES
Color	Black
Customer Reviews	4.5 4.5 out of 5 stars (166)
Finish Types	Unfinished
Hole Count	4
Included Components	Fasteners
Item Dimensions L x W	4.75"L x 3.5"W
Manufacturer	D&D TECHNOLOGIES
Manufacturer Part Number	TCHD1AL2S3BTS
Material Type	Industrial strength metal replacement polymer, Stainless steel
Maximum Weight Capacity	154 pounds
Model Number	TCHD1AL2S3BTS
Mounting Type	Door Mount
UPC	736494012501
Unit Count	2 Count

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