SKU: 58705404918

Earl WP-C105 Windpost (WP3 comparable)

Sale price$101.25 Regular price$112.50
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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19

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Description

Earl WP-C105 Windpost (WP3 comparable)Earl WP C105 Windpost A C section windpost suitable for cavity widths starting from 125mm Need a wind post for a 100mm cavity? Click here for our 80mm deep windpost Please view the detail sheets (link below) to help determine if a top or bottom connector is required Click Here for a PDF version of this windpost's detail sheets Unsure if this post is right for you, or don't know which connectors to choose? Contact us with your project details. We can

Earl WP-C105 Windpost – A C-section windpost suitable for cavity widths starting from 125mm

Need a wind post for a 100mm cavity?  Click here for our 80mm deep windpost

Please view the detail sheets (link below) to help determine if a top or bottom connector is required

Click Here for a PDF version of this windpost's detail sheets

Unsure if this post is right for you, or don't know which connectors to choose? Contact us with your project details. We can advise what is needed, and provide structural calculations for what we supply.

Please note that our windposts need to be cut and drilled to suit requirements on site.  All cut edges should be treated with cold galvanizing paint or bitumen (eg. Blackjack).

 

Overview

·         This windpost is a 105mm deep ‘C’ fabricated in accordance with BS EN 1090.

·         This post is intended to be located within the cavity of a cavity wall.

·         All steel has been hot dipped galvanized to ensure longevity.

       The load capacity of this windpost at 3m length (105x55x4) is slightly greater than Ancon WP3 95x60x5 at 3m length, but slightly less at 2.5m length due to tie capacity (11.42kN vs. 13.83kN) (checked 28.04.25).

       The load capacity of the 3.5m and 4m length windposts (105x65x6) are slightly greater than Ancon WP3 115x60x5 at lengths 3.25m and above.  Load capacity of the windposts at lengths below this are slightly less than Ancon WP3 115x60x5 due to tie capacity (15.03kN vs 13.72kN at 3m length) (checked 28.04.25).

·         This post is provided with a welded base plate as standard.  In many cases no additional base connector is required.

·         The load capacity of this windpost has been determined by our in-house structural engineer, who is also on hand to answer any technical questions you may have.

·         This post can be supplied with all frame cramp wall ties, Tek screws and isolation pads required.  See the options in the drop-down box to see which you need.

·         A variety of base and top connectors are available to suit most applications.  We can provide bespoke connectors where none of the range apply.

·         This approach to windposts removes the need for accurate measuring and lengthy production times, resulting in a fast delivery and a system that is not prone to costly errors.

·         We supply this post with anchor bolts, and supply connectors with the bolts required.

·         The length of post stated is a minimum, and may be up to 25mm longer.

·         The installer/user of the post is responsible for the safe cutting and drilling procedures of the post, and for supplying any cutting and drilling equipment and consumables required.

 

What You Receive

Please note that wall ties, base connectors and top connectors need adding to basket alongside windposts.

Windpost - The windpost as stated, two M12x145 through-bolt anchors (unless a base connector is purchased) and two M12x150 bolt assemblies for top fixing (unless a top connector is purchased)

Tie Sets - Frame cramp ties, neoprene isolation pads and Tek screws in quantities to allow ties at 225mm centres based on post length.  3m posts receive 28 (14 per side), 3.5m posts 32 (16 per side) and 4m posts 36 (18 per side).  We provide a free Tek screw driver bit with each purchase.  Additional individual ties are available to purchase, click here.

Base Connector A - Connector bracket as drawn, plus two M8x100 through bolt anchors for fixing bracket to concrete and two M12x40 bolt assemblies for fixing the post to the connector.

Base Connector B - Connector bracket as drawn, plus two M12x100 through bolt anchors to fix the connector to concrete and two M12x40 bolt assemblies for fixing the post to the connector.

Base Connector C - Connector bracket as drawn, plus four M6x50 coach screws to fix the connector to the timber joists and two M12x40 bolt assemblies for fixing the post to the connector.

Top Connector A - Connector bracket as drawn, plus two M12x40 bolt assemblies for fixing the post to the connector, and two M12x150 bolt assemblies with two 50x50 washers for fixing to the structure. 

Top Connector B - Connector bracket as drawn, plus two M12x40 bolt assemblies for fixing the post to the connector, two M12x40 bolt assemblies (for use when bolting connector to steel), and two M12x100 bolt assemblies with 50mm toothed washers & 50x50 square washers (for use when fixing connector to wall plate).

Top Connector C - Connector bracket as drawn, plus two M12x40 bolt assemblies for fixing the post to the connector, and two M12x150 bolt assemblies with two 50x50 washers for fixing to the structure. 

 

Alternate bolts and fixings can be supplied on request

 

Similar Products

·         Ancon WP3 Windpost

·         Wincro WPC Windpost

·         Keystone U Windpost

·         Vista VEW2 Windpost

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 58705404918

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4.4 ★★★★★
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sleepywan
New York, US
★★★★★ 3
OK for the price, but overall comfort is avergae
Size: 934-Z, Color: Mustard
Easy to put together, color (mustard) accurate to images, and while I understand this is not a high-end chair, I feel like it still needs to be rated for its quality. Pros: the seat cushions are fairly comfortable and it rolls well. Adjustable footrest is easy enough and mostly sturdy. Cons: For a tall office chair, it doesn't go up high enough. I actually had to lower my standing desk to sit at it, which then isn't where I want it when I'm standing now. It's also a bit wobbly. The seat area's attachment to the post isn't as solid as it should be for a tall chair, so while sitting, it does tend to lean/slope forward and wobble side to side. The lumbar support is not adjustable, so I'm not even really sure what it does. And the armrests are not very comfortable to use. Since they are hard plastic, they are just a bit too rigid to rely on for any comfort. They are basically there to hold on to when you're getting out of the chair.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
M
Verified Purchase
Mel
Chelsea, US
★★★★★ 4
Good Value for a Tall Chair
Size: 934W-Z, Color: White
I have received this chair just today and would like to give my first impressions of it. Height is super adjustable as well as the foot rest. My desk is very tall (~34 inches vs standard ~29 inches) and does not suit a standard height chair. This chair's height is enough to sit comfortably at mybut also still having adjustment to be even higher. Lumbar support is a manual adjustment that can be adjusted by sliding the lumbar piece up or down and it seems it can be tiled as well. No reclining feature or slight backrest tilt adjustment. I'm used to my chairs reclining so it feels a little awkward siting in a flat base and straight backrest. I feel like I'm sitting too forward or leaning forward slightly but is probably something I can get use to. Easy to put together and feels very sturdy. Plastic parts of chair are made from a really sturdy plastic, like playhouse plastic materials. Wheels roll around carpet easily. Mesh seems to be a strong material, though the mesh feels kind itchy on bare skin. Overall, I think this is a good chair to get if you're needing a tall chair for a good value and can sacrifice no backrest tilt.
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Reviewed in the United States on December 3, 2025
T
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Tram
Lowell, US
★★★★★ 5
Excellent value for money!
Size: 934W-Z, Color: Black, Size: 934W-Z, Color: Black
I absolutely love this office chair! I needed a chair that could support my standing desk without sacrificing comfort, and this one completely exceeded my expectations. It's incredibly sturdy and durable, well-made, and the height adjustment is super convenient, making it easy to find the perfect fit. Even during long hours of work, the seat is comfortable, and the ergonomic design effectively reduces pressure on my back and legs. I love its clean, modern look—it fits my home office perfectly. Assembly was quick and easy, and for this price, the quality is absolutely fantastic!
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Reviewed in the United States on February 24, 2026
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Verified Purchase
Lisa Bjornstad
Alexandria, US
★★★★★ 5
Perfect chair!
Size: 934-Z, Color: Blue, Size: 934-Z, Color: Blue
I have an adjustable-height desk (also purchased from Amazon) and needed a drafting chair for those times when my body gets tired of standing. This chair fits the bill and then some! I put it together myself; it took me about an hour, but would take me about half that next time, since now I know what to do (and what NOT to do!). All the parts were there; there are even spare parts (see photo). All the holes were drilled in exactly the right places, too, which isn't always the case when I buy things from Amazon (my standing desk is a great example). The chair fits me; I'm short (5'3.5"), and often the seats of furniture are too deep for me to rest my feet flat on the floor. The depth of the seat on this chair is just a little over 18 inches, and with the adjustable footrest ring, it's perfect. I don't think a tall or heavy person would fit in it, to be honest. But it's perfect for those of us who are vertically challenged. I love that it glides easily on my hardwood floors and that it turns 360 degrees. The chair comes in numerous luscious colors, so take your pick! It is very sturdy, has good lumbar support, and the seat and seat back are very comfortable. And the arms flip up, which was an absolute must when I was shopping for this chair. I got it on sale, too -- $109.00 -- and I'm delighted with this purchase.
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Reviewed in the United States on April 23, 2026
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Verified Purchase
PenLady
Fort Morgan, US
★★★★★ 5
Excellent adjustable drafting chair
Size: 934-Z, Color: Blue
Excellent chair design, extremely comfortable and exceptionally easy instructions to follow making for simple assembly. Love the amply wide cushioned seat and ergonomic backrest. The height adjustment feature works perfectly as well as positioning of the foot ring . Having the ability to raise the arms is also a big plus! I highly recommend this product for attractive appearance, comfort features, functionality and operation. Really nice chair!
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Reviewed in the United States on April 13, 2026

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