Shakewood colorway; 21 shingles per Home Depot listing
Key features
UltraMat + Class 4 pathway when bundle markings match GAF footnotes
WindProven and warranty outcomes remain system-dependent per GAF program rules
Technical specifications
| Thickness | 2.4 in |
|---|---|
| Width | 13.25 in |
| Length | 39.375 in |
| Coverage | 33.33 sq ft/pack |
| Material | Fiberglass-reinforced asphalt ultra-dimensional laminate (Timberline UHDZ with UltraMat per GAF documentation) |
| Fire rating | UL Class A fire classification (ANSI/UL 790) per GAF Timberline UHDZ line documentation |
| Construction type | Laminated ultra-dimensional strip shingle (Timberline UHDZ with UltraMat per GAF) |
| Application area | Steep-slope asphalt shingle roof systems installed per GAF requirements; WindProven limited wind warranty requires qualifying GAF accessory system; UL 2218 Class 4 and StainGuard Plus PRO eligibility depend on package markings per GAF |
Product details
Shakewood UHDZ keeps an earthy, warm roof tone while stepping up to the ultra-dimensional laminate presentation and UltraMat story documented for Timberline UHDZ.
Impact classification must be stated precisely: GAF indicates UL 2218 Class 4 impact resistance for packages bearing the UltraMat logo and UL 2218 Class 4 classification statement; verify bundle markings before making performance promises.
StainGuard Plus PRO limited warranty language applies to eligible packages as described in GAF warranty documents; algae protection is not universal across every bundle solely because the color name sounds premium.
Bundle coverage is commonly listed near 33.33 square feet per bundle in major retailer titles for this product class; confirm printed coverage for the delivered SKU.
Installation fundamentals remain decisive: aligned courses, disciplined nail placement within documented zones, and clean valley and penetration detailing determine service life.
Wind warranty programs should be discussed as system requirements: accessory compatibility and installation documentation matter as much as shingle selection.
For projects where insurers ask about impact resistance, provide manufacturer literature appropriate to the installed package markings rather than generic line marketing.
Documents & certifications
Technical data sheet
Manufacturer-tested R-value, coverage, fire notes, and handling—use for submittals, RFIs, and field QA.
Download PDF (opens in new tab)Certifications & compliance
UL 790 Class A fire; UL 2218 Class 4 impact resistance on packages bearing the UltraMat logo and UL 2218 Class 4 classification statement (per GAF Timberline UHDZ product page footnotes); ASTM D3462, D7158, D3161, D3018 Type I (per GAF UHDZ specification sheet)
Frequently asked questions
How many bundles are in a square for Timberline UHDZ?
How many bundles are in a square for Timberline UHDZ?
Home Depot lists these UHDZ SKUs at about 33.33 sq ft per bundle with 21 pieces, which matches the common three-bundle per square math used across GAF architectural lines. Always confirm coverage on the bundle label and add waste for cuts.
What is WindProven and does it apply automatically?
What is WindProven and does it apply automatically?
WindProven is GAF's limited wind warranty with no maximum wind speed when the roof is installed with four qualifying GAF accessory products per current GAF program rules. Eligibility is not automatic from the shingle alone.
Are all Timberline UHDZ bundles UL2218 Class 4?
Are all Timberline UHDZ bundles UL2218 Class 4?
GAF states that only Timberline UHDZ shingles sold in packages bearing the UltraMat logo and UL 2218 Class 4 classification statement are rated Class 4. Verify the physical bundle markings for warranty and submittal language; hail damage may still have exclusions in warranty documents.
Can I mix UHDZ colors on the same roof plane?
Can I mix UHDZ colors on the same roof plane?
For appearance and warranty continuity, use consistent product lines within a roof area. For warranty-backed projects, follow GAF's written guidance and contract documents rather than field-mixing unmatched SKUs.