Is a square or round base boot better for a 4-12 pitch steel standing seam roof?

Round Dektites are great for a roof pitch of 10/12 and under. Square Dektites, are for 10/12 roof pitch and higher, due to having a larger base and helps with water not forming a puddle. Square Dektites should be set on the roof in a diamond shape. Both shape are easy to install.

what is the size of the actual base of the #4 3" by 7" not the dimensions of the box

I mam not sure of the exact size, but it's prob ably 16 inches. I don't remember the exact size. That is the best I can do.It is a good product and easy to install. Make sure to wet the pipe with a teaspoon of dish soap in the water before slipping the boot down the pipe.

Will this work on a 2 and a 1/2 inch pipe

This flashing is for Pipe Outside diameter of 3" to 7" so a 2 1/2" pipe will be too small. There are others on this site and in most home improvement stores that will fit that size of pipe.

I have a 3" pipe going through a 4-12 pitch steel standing seam roof. What size range boot would work best for this?

The size range boot that would work best for this would be the #3 1/4" - 5".

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DEKS DEKTITE #4(DFE104B) Square Black EPDM Flexible Pipe Flashing (Roof Jack, Pipe Boot Flashing) Dektite for OD Pipe Sizes 3" - 7"

Product ID: 276556702

Details

Brand
DEKS
Colour
Black
Item dimensions L x W x H
27.9 x 27.9 x
Material
Silicone Metal
Size
2.875" to

📏Fits 3" to 7" pipe OD

🌡️Temp range -58°F to +239°F

🛠️11" x 11" flexible aluminum base

€ 96.26

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Description

🛡️ Seal your roof with confidence—flexible, durable, and built to last!

ON SITE CUSTOMIZATION - Easily adjustable for quick, hassle-free installation—because your time is valuable.
FLEXIBLE ALUMINUM BASE - 11" x 11" base adapts to uneven metal roofs, ensuring a watertight seal every time.
UNIVERSAL PIPE COMPATIBILITY - Seamlessly fits pipes from 3" to 7" OD, perfect for diverse roofing projects.
DURABILITY BACKED BY WARRANTY - 20-year manufacturer’s guarantee against defects means peace of mind for decades.
EXTREME TEMPERATURE RESILIENCE - Engineered EPDM rubber endures from arctic chills to scorching heat without cracking.

The DEKS DEKTITE #4 Square Black EPDM Flexible Pipe Flashing is a premium roofing accessory designed to fit 3" to 7" diameter pipes. Made from durable EPDM rubber with an aluminum collar, it withstands extreme temperatures from -58°F to +239°F. Its 11" x 11" flexible base ensures a secure, watertight seal on uneven metal roofs, reducing maintenance and extending roof life. Backed by a 20-year warranty, it’s the trusted choice for professional-grade pipe flashing solutions.

Specifications

ASIN	B0771T9FLW
ASIN	B0771T9FLW
Brand Name	DEKS
Color	Black
Connector Type	Elbow
Customer Reviews	4.6 4.6 out of 5 stars (148)
Customer reviews	4.6 4.6 out of 5 stars (148)
Date First Available	21 February 2018
Exterior Finish	Aluminium
Is Discontinued By Manufacturer	No
Item Dimensions	27.9 x 27.9 x 6.4 centimeters
Item model number	687748063056
Manufacturer	DEKTITE
Manufacturer	DEKTITE
Manufacturer Part Number	DFE104B
Material Type	Silicone Rubber Metal
Model Number	687748063056
Number of Pieces	1
Product Dimensions	27.94 x 27.94 x 6.35 cm; 381 g
Set Name	Single piece
Size	2.875" to 6.75"
Thread Type	UN
UPC	687748063056
Unit Count	1 Count

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€ 96.26

Duties & taxes included

In stock

Sold byAmazon PortugalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Portugal.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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