Galvanized Square Sign Post - Y3536-Y3537, Sign Posts and Sign Stands

1¾″ x 6′
Material Sku Quantity/Price
1–2 3–4 5–9 10–19 20–39 40+
14 Gauge Galvanized Steel Y3536-175SQ6 $36.50 $35.40 $34.35 $33.30 $31.65 $29.10
1¾″ x 8′
Material Sku Quantity/Price
1–2 3–4 5–9 10–19 20–39 40+
14 Gauge Galvanized Steel Y3536-175SQ8 $38.50 $37.35 $36.25 $35.15 $33.40 $30.70
1¾″ x 10′
Material Sku Quantity/Price
1–2 3–4 5–9 10–19 20–39 40+
14 Gauge Galvanized Steel Y3536-175SQ10 $45.50 $44.15 $42.80 $41.55 $39.45 $36.30
2″ x 8′
Material Sku Quantity/Price
1–2 3–4 5–9 10–19 20–39 40+
14 Gauge Galvanized Steel Y3537-2SQ8 $40.95 $39.75 $38.55 $37.40 $35.50 $32.65
2″ x 10′
Material Sku Quantity/Price
1–2 3–4 5–9 10–19 20–39 40+
14 Gauge Galvanized Steel Y3537-2SQ10 $49.95 $48.45 $46.95 $45.60 $43.30 $39.85
Special Freight Arrangement: Due to the size of this product, freight shipping will be required. You may contact our customer service team for a quote or you can place your order and a customer service representative will contact you about freight shipping charges. If you would like to use your own freight carrier, please include your freight carrier account in the special instructions box at the bottom of the checkout page before placing your order. A customer service representative will be in contact with you if there are any questions.

Phone: 800-274-6271
Fax: 800-279-6897
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  • Details

Square Post Specifications, Installation and Sign Mounting

The square post is one of the most versatile posts in the industry and a great choice for displaying traffic signs, parking signs, and property signs. The square shape provides greater wind load capabilities and torsional stability, allows signs to be mounted on all four sides of the post, and enables each subsequent size to fit into the next smallest or larger post. The sections below will provide specifications for all our square posts, installation requirements and tips, as well as sign mounting instructions.

Square Post Specifications

Post Size Post Material Gauge Post Width Hole Size & Placement Shipping Recommended Use
3 ft. Galvanized 12 Gauge 2″ 7/16″ dia. on 1″ centers UPS & FedEx Breakaway Anchor Post
3 ft. Galvanized 12 Gauge 2¼″ 7/16″ dia. on 1″ centers UPS & FedEx Breakaway Anchor Post
6 ft. Galvanized 14 Gauge 1¾″ 7/16″ dia. on 1″ centers UPS & FedEx Delineators, Parking Lot Signs, Non-Official Use
8 ft. Galvanized 14 Gauge 1¾″ 7/16″ dia. on 1″ centers UPS & FedEx Parking Signs, Property Signs, Traffic Signs
8 ft. Galvanized 14 Gauge 2″ 7/16″ dia. on 1″ centers UPS & FedEx Parking Signs, Property Signs, Traffic Signs
10 ft. Galvanized 14 Gauge 1¾″ 7/16″ dia. on 1″ centers Freight Only Parking Signs, Property Signs, Traffic Signs
10 ft. Galvanized 14 Gauge 2″ 7/16″ dia. on 1″ centers Freight Only Parking Signs, Property Signs, Traffic Signs
1.75 inch Sign Square Post 2 inch Anchor Square Post 2 inch Sign Square Post 2.25 inch Anchor Square Post

Square Post Installation

The following table details the recommended installation depth for square posts without the use of an anchor post. SafetySign.com recommends the use of an anchor post with every post installation to increase safety in the event of a vehicle collision with the post, and to help maximize the amount of available space on the post for mounting a sign.

Post Size Post Material Post Width Recommended Installation Depth* Bolt Size Requirements
3 ft. Anchor Galvanized 2″ and 2¼″ 32″ - 34″ SafetySign.com Corner Bolts
Fit 2″ and 2¼″ Anchor Posts
6 ft. Galvanized 1¾″ 18″ - 24″ 2½″ Long Bolts or Drive Rivets
8 ft. Galvanized 1¾″ 30″ - 36″ 2½″ Long Bolts or Drive Rivets
8 ft. Galvanized 2″ 30″ - 36″ 3″ Long Bolts or Drive Rivets
10 ft. Galvanized 1¾″ 36″ - 42″ 2½″ Long Bolts or Drive Rivets
10 ft. Galvanized 2″ 36″ - 42″ 3″ Long Bolts or Drive Rivets

* Installation Depth Notes:

  1. The depth numbers we are providing are general guidelines and do not take into account the different types of soil in your specific location. When possible, it is ideal to install square posts to a depth of 30″ - 36″.
  2. A breakaway system should be used when installing posts on public roadways and on private roads open to public travel such as those running through a non-gated corporate complex or shopping center. Our breakaway anchor post should be installed approximately 32″ into the ground.
  3. Be aware of frost lines as they vary by region of the country.

Square Post Sign Mounting

There are three options for mounting signs to a square post. Option 1 utilizes tamper resistant drive rivets, Option 2 utilizes a standard hex-head bolt set, and Option 3 utilizes a tamperproof one-way bolt set.

Option 1 – Drive Rivets

Hardware required:

  1. Our Y3527 drive rivet.

Tools required:

  1. Hammer

Installation instructions:

  1. Place the sign on the square post where it meets your height requirement and line up the mounting holes with the holes on the post.
  2. Insert our Y3527 drive rivets through the mounting holes on your sign into the post.
  3. Using a hammer, hit the drive rivet until the pin is flush with the head.
Image showing placement of drive rivet in mounting hole on sign Image showing hammer about to hit the drive rivet Image showing drive rivet installed

Option 2 – Standard Hex-Head Bolt Set

Hardware required:

  1. Our Y3465 or Y3550 bolt sets.

Tools required:

  1. ½″ socket and ratchet wrench
  2. ½″ combination wrench

Installation instructions:

  1. Place the sign on the square post where it meets your height requirement and line up the mounting holes with the holes on the post.
  2. Using our Y3465 or Y3550 bolt sets, insert a washer over the 5/16″ bolts and then insert the bolts into the mounting holes of the sign and through the post.
  3. Insert a washer on the other end of the bolt followed by the nut and tighten the nut down.
Hex-head Square Post Sign Mounting Hardware

Installing Tamperproof One-Way Bolt Set

Hardware required:

  1. Our Y4900 or Y4901 bolt sets.

Tools required:

  1. Our Y4965 screwdriver with for one-way bolts.
  2. ⅝″ socket and ratchet wrench

Installation instructions:

  1. Place the sign on the square post where it meets your height requirement and line up the mounting holes with the holes on the post.
  2. Using our Y4901 or Y3551 bolt sets, insert a washer over the 5/16″ bolts and then insert the bolts into the mounting holes of the sign and through the post.
  3. Insert a washer on the other end of the bolt followed by the breakaway nut with the cone end facing the post.
  4. Tighten the nut down until it shears from the cone.
Tamper Resistant Square Post Mounting Hardware

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