If you need reliable 20-inch gas struts to lift heavy lids, doors, or hatches, these options are aimed at RVs, campers, trucks, and storage boxes. They’re best for DIY projects, boat or vehicle compartments, and any lid requiring strong, smooth assistance. This guide selects five sturdy 20-inch models with 70–110 lb force per strut, clarifying ideal uses and limitations for each buyer.
Summary of chosen products:
| Product | Brand | Lift Capacity | Included Mounts |
|---|---|---|---|
| IAQWE 20 Inch 70Lb/311N Gas Struts | IAQWE | 70 lb per strut | 1 pair; ball stud mounting |
| Gas Spring Prop Struts 20 Inches 80lb | LingaAST | 80 lb per strut | 2 shocks; multiple mounts |
| Euplokeer 20in Gas Strut 110 lb | Euplokeer | 110 lb per strut | 2 pcs; 10MM mounting |
| AUCLIDIS 20 Inch 150 lb Set | AUCLIDIS | 150 lb per strut | 2 pcs; multiple interchange numbers |
| PAMAGOO 20 Inch 110 lb | PAMAGOO | 110 lb per strut | 2 pcs; 4x 10 MM ball studs |
IAQWE 20 Inch 70Lb Gas Struts

Best for budget-conscious DIYers needing a pair of 70 lb gas shocks for medium-duty lids and compartments. The 20-inch extended length and 11.93-inch compressed length provide solid lift without excessive bulk. End fittings include a 10MM ball stud, and the product is listed with broad interchange compatibility for common replacements. Suitable for RV doors, tool boxes, and trailer lids where a moderate lift is sufficient.
Who it’s best for: this is ideal for DIY enthusiasts tackling RV doors, tool compartments, or trailer lids where heavier hardware is not required. Why selected: strong 70 lb per strut rating and good interchange options support straightforward replacements.
Caution: this model is designed for a narrow weight range; verify your lid’s weight and mounting hardware compatibility before purchase.
LingaAST 20 Inch 80lb Gas Struts

Better for heavier lids and frequent use in RVs, campers, and trucks. Each set includes two shocks plus multiple mounts (flat mounts, M6 threads, ball studs, and L mounts), expanding install options for various lid styles. The 80 lb per strut rating supports heavier doors and hatches while remaining manageable for DIY installations.
Best-fit scenario: choose this if your lid is close to or above typical 70–80 lb and you need flexible mounting choices. Limitation: ensure your lid weight aligns with the combined strut capacity for safe operation.
Euplokeer 20in 110 lb Gas Struts

Strong option for higher-lift applications such as truck bed caps, tonneau covers, and heavy RV compartments. The 110 lb per strut rating provides robust support for heavy lids, and the included 10MM mounting brackets aid straightforward installation. This model emphasizes compatibility with interchangeable part numbers to match existing hardware.
Choose this if your lid is particularly heavy or you require a higher lift to keep a lid open reliably. Caution: higher lift capacity can mean more noticeable force during opening, so install with care to avoid pinch points.
AUCLIDIS 20 Inch 150 lb Set

Best for heavy-duty, long-life applications where lids are very heavy or require frequent lifting. The 150 lb per strut rating supports large heavy lids, such as truck canopies or large RV compartments. The product lists multiple interchange numbers to help you match existing hardware during replacement.
Recommendation: choose this when you need maximum lift for a heavy equipment lid. Limitation: ensure the mounting area can accommodate higher forces and clearance is sufficient to avoid contact with nearby parts.
PAMAGOO 20 Inch 110 lb Set

Balanced option for mid-to-heavy lids in campers, boats, and utility boxes. The 110 lb per strut rating provides strong lifting power while staying within a manageable range for frequent use. The kit includes 4 ball studs and installation guidance, aiding compatibility with a variety of lid configurations.
Best for: projects requiring dependable, medium-to-heavy lift with straightforward installation. Limitation: verify that your existing mounting hardware aligns with the included parts to prevent installation delays.
Buying Guide: 20-Inch Gas Struts For Lids, Doors, And Hatches
- How much lift do you need? For lighter lids, 70–80 lb per strut is often sufficient. For heavier lids like large tonneau covers or chest lids, 110–150 lb per strut may be necessary.
- What is the extended length and compressed length? A typical 20″ strut extends about 19.7″–20.0″ and compresses around 11.8″–12.0″. Measure your lid’s travel and available clearance to avoid binding.
- Mounting hardware compatibility: check ball stud size (commonly 10 mm) and mounting brackets. Many sets include multiple mounting options to fit RVs, campers, boats, and boxes.
- Interchange numbers: use the listed interchange numbers to confirm compatibility with your current gas struts or OEM parts.
- Environment and durability: some models advertise operation across wide temperature ranges and weather conditions; consider where the lid will operate (outdoors, in garages, or in moisture-prone areas).
- Installation effort: kits that include brackets, flat mounts, and multiple ball studs simplify installation. If missing parts are reported, contact the seller for replacements.
- Application versatility: these shocks suit RV doors, floor hatches, truck toppers, toolbox lids, and under-bed or Murphy-bed structures. Consider whether you need additional mounting flexibility for future projects.
Frequently Asked Questions
- What weight should I assign to each strut for a heavy lid? Aim for the total lid weight divided by the number of struts, plus a safety margin. Typical configurations use two struts for mid-range lids.
- Can I mix different brands of gas struts? Mixing brands is not recommended unless the lift force, length, and mounting dimensions match exactly, as mismatches can cause uneven lift and wear.
- Do these struts support outdoor use? Most 20-inch gas struts are designed for outdoor environments, but verify temperature and corrosion resistance for your location.
- How do I determine compatibility with my current hardware? Compare the cylinder part numbers or interchange numbers shown in product listings to your existing struts and mounting brackets.
- Are installation brackets included? Some sets include brackets, mounts, and ball studs; others may require separate purchases. Check product details carefully.
- What safety considerations exist when installing gas struts? Ensure lids are supported during installation and avoid pinch points. Use proper tools and secure mounting points before testing lift.