Tigerflex Shiplap Pent Windowless Double Door Shed – Expert Review

Some garden buildings are designed to look attractive at the bottom of the garden.
Others are designed to work hard, every day, without fuss.

The TigerFlex® Shiplap Pent Double Door Windowless Shed sits firmly in the second category. It is not a decorative summerhouse, and it does not try to be. Instead, it focuses on strength, flexibility, and real-world usability — and in doing so, becomes one of the most practically engineered pent sheds in Tiger’s entire range.

This review is based on multiple physical inspections of TigerFlex Pent sheds, combined with a detailed examination of Tiger’s technical specification and assembly methodology. While individual garden layouts differ, the underlying structure, materials, and build logic of this double-door windowless model are directly comparable to the TigerFlex Pent buildings I have inspected in person. The absence of windows simplifies the structure further, increasing rigidity and privacy rather than compromising it.

First Impressions: Purpose-Built and Confident

The first thing that stands out when stepping into a TigerFlex Pent shed is how dense and composed it feels.

There is none of the hollow echo or slight bounce that often gives away lower-grade sheds. The floor feels firm and planted underfoot, and the walls respond as a single unit when pressed — not as individual panels trying to move independently.

Visually, the shed is understated:

• clean, uninterrupted shiplap cladding
• crisp shadow lines
• a simple pent roof profile
• no glazing to break up the structure

It looks like a building designed for secure storage and regular use, not a garden ornament.

Pent Roof Geometry: Why This Version Feels Stronger

One of the quiet strengths of the TigerFlex Pent range is the roof geometry itself.

Compared with an apex roof, a pent roof relies on long, continuous structural members running the length of the building. In practice, this creates a naturally stiffened upper structure. When examining the inside of TigerFlex Pent sheds, the roof framing always feels tightly locked together, with very little flex when pressure is applied.

The roof panels are 12 mm tongue-and-groove boards, fixed into the wall structure and finished with black mineral felt. The felt is properly nailed rather than lightly stapled, which helps prevent lifting and water ingress during high winds.

In real-world terms, the Pent TigerFlex sheds often feel slightly more rigid overall than their Apex equivalents — especially in smaller and mid-size footprints.

Double Doors: The Feature That Defines This Model

The defining feature of this shed is the double door configuration.

Unlike a single-door pent shed, which funnels access through a narrow opening, the double doors transform how the building works day-to-day.

One detail that’s genuinely worth calling out here is the actual door width. When both doors are fully open, you get a combined clear opening of approximately 1032 mm (just over one metre).

In real terms, that’s wide enough for most lawnmowers, mobility scooters, bicycles, wheelbarrows, and bulky garden equipment to pass through without twisting or lifting at awkward angles. It’s a noticeably wider opening than a standard single-door shed, and it’s the main reason this model feels so much easier to use day to day.

Opening both doors gives you:

• a wide, unobstructed entrance
• immediate natural light, even without windows
• space to manoeuvre bulky items easily

This makes a significant difference if you are storing:

• lawnmowers or ride-on equipment
• bicycles or mobility scooters
• gym or fitness equipment
• pressure washers or generators
• large tool chests or machinery

When I opened the double doors on comparable TigerFlex models, the interior immediately felt more like a usable workspace than a dark storage box. Windowless sheds often feel enclosed, but wide doors counteract that effect effectively.

The doors themselves are fully boarded tongue-and-groove units, pre-fitted in the workshop, and supported by three hinges per door . They open smoothly and close with a reassuring, solid sound — a good indicator that the framing is square and properly braced.

Door Placement Flexibility: A Genuine Practical Advantage

One of the biggest advantages of the TigerFlex system is that the doors can be positioned on any side, in almost any location .

This flexibility is particularly valuable with double doors.

In real gardens, sheds are rarely placed in ideal conditions. You may have:

• narrow side passages
• fences or walls close by
• awkward access routes
• a desire to optimise internal shelving

TigerFlex allows you to configure the shed around your garden, not force your garden to adapt to the shed.

The Pent design benefits especially from this modular approach, as the lower roof pitch creates longer uninterrupted wall runs and simpler join patterns, making internal layouts easier to plan.

Modular Construction: Why It Doesn’t Feel Modular

There is a common misconception that modular sheds are inherently weaker. The TigerFlex system proves the opposite.

Each wall panel is fully framed and braced, creating what feels like a series of compact structural units rather than long, unsupported walls. When pressure is applied to the interior walls, movement is minimal — often less than a millimetre.

Shorter timber spans mean:

• reduced risk of bowing
• better long-term dimensional stability
• more frequent framing points

On this windowless model, the absence of glazing cut-outs further enhances rigidity. The cladding remains continuous across the entire wall surface, which significantly improves resistance to racking and flex.

Materials & Build Quality: No OSB Anywhere

The TigerFlex Shiplap Pent Double Door Windowless Shed uses:

• 12 mm finish-grade shiplap tongue-and-groove cladding
• 28 × 44 mm rounded corner framing
• 12 mm tongue-and-groove floor
• 12 mm tongue-and-groove roof
• No OSB or sheet board anywhere in the structure

This matters.

Cheaper pent sheds often rely on OSB floors and roofs, which can soften, swell, and degrade over time. By contrast, tongue-and-groove boards behave predictably, dry out properly, and retain their strength far longer.

Running your hand along the interior walls of a TigerFlex shed, the machining quality is immediately obvious:

• smooth surfaces
• tight joints
• no splintering
• no ragged board edges

The timber itself has that dry, resinous smell associated with properly seasoned softwood — always a reassuring sign.

Floor Strength: Built for Real Weight

The floor is one of the strongest aspects of this shed.

Using 12 mm tongue-and-groove boards, supported by heavy-duty bearers fixed with long screws into the floor joists, the floor is designed to handle concentrated loads .

In practical terms, this means you can store:

• stacked toolboxes
• heavy garden machinery
• fuel containers
• workbenches

…without worrying about sag or bounce underfoot.

For a double-door shed — which naturally encourages heavier items — this is exactly what you want.

Security: Adequate Out of the Box, Easy to Upgrade

Security on this model is honest rather than exaggerated.

As standard, the shed uses a lock-and-key system with turn button . For normal garden storage, this is perfectly adequate.

There is one point worth noting:

The hinge screws are externally visible.

This is common in sheds at this price point, but if you plan to store high-value items, it is sensible to add:

• hinge bolts
• tamper-proof screws
• or an internal hasp

Tiger also offer Security Pent variants, which include reinforced bar systems fitted internally across the doors .

The important thing is that the shed is easy to upgrade — the structure itself is strong enough to support additional security measures.

Assembly & Installation: Methodical, Not Difficult

The TigerFlex Pent sheds are designed to be assembled by two competent adults, following a clear, step-by-step process .

The instructions place strong emphasis on:

• a firm, level base
• correct panel alignment before fixing
• pre-drilling screw holes to prevent splitting
• gradual tightening to keep the building square

This is not a rushed build — but it is a logical one. Take your time, follow the guidance, and the result is a shed that feels professionally installed rather than hurried together.

Treatment, Maintenance & Longevity

The shed arrives pre-treated with TigerSkin® water-based treatment, providing short-term protection during transport and installation .

To validate the guarantee and ensure long-term performance, Tiger make it clear that:

• the shed must be treated internally and externally after assembly
• treatment should be reapplied regularly

Do that properly, and the building is backed by Tiger’s market-leading 20-Year Guarantee .

Pros & Cons

Pros

• Wide double-door access
• Flexible door placement on any side
• Very rigid pent roof structure
• 12 mm tongue-and-groove throughout
• No OSB anywhere
• Excellent floor strength
• British-made with FSC® certified timber
• Long 20-year guarantee

Cons

• Hinge screws externally visible (easy to upgrade)
• No natural light unless doors are open
• Not a high-security shed without minor additions

Best Uses

This shed is ideal for:

• secure garden storage
• bike and mobility scooter storage
• home gym equipment
• gardening machinery
• small workshop setups
• gardens with awkward access

Comparison: Pent vs Apex TigerFlex Double Door

• Pent version: feels slightly more rigid, better wall runs, cleaner internal layout
• Apex version: more central headroom, traditional appearance

If structural stiffness and wall space matter more, the Pent version edges ahead.

FAQs

Is this shed suitable as a workshop?
Yes, especially as a light workshop or tool space, but you may want to add lighting.

Can I upgrade the security later?
Yes — hinge bolts or a security bar can be added easily.

Does it need a base?
Yes — a firm, level base is essential.

Is it good value?
For a non-OSB, double-door pent shed with this flexibility, it represents very strong value.

Final Verdict

The TigerFlex® Shiplap Pent Double Door Windowless Shed is a serious storage building.

It is solid, flexible, intelligently designed, and clearly built by people who understand how sheds are actually used. The double doors transform accessibility, the pent roof adds rigidity, and the modular TigerFlex system removes layout compromises.

If you want a strong, adaptable, long-lasting pent shed that prioritises function over decoration, this is one of the best options Tiger currently offers — and one of the most convincing modular sheds on the UK market.