For most pedestrian-facing storefronts, a double-sided projecting blade sign with internal or halo illumination gives the best balance of legibility and brand presence. It reads from both directions of foot traffic, stays visible after dark, and clears council checks more easily when the size and projection match local signage controls. Before you lock in dimensions, work through the mounting and approval guidance below.
TL;DR:
- Choose a slim flag style for narrow footpaths; corner sites can use larger circular signs visible from two streets at once.
- Acrylic suits internally lit faces because it diffuses light evenly; reflectorized sheeting improves night visibility without requiring power.
- A common guide pairs 10 to 12 metres of viewing distance with 25.4 millimetres of letter height; use larger type for elevated or angled signs.
- Before ordering, verify local projection and clearance limits, heritage controls, and bracket capacity; some guidance sets clearances around 2.1 to 2.4 metres.
Table of Contents
- Blade sign styles and when to use each
- Materials and finishes: choosing for look, cost and durability
- Illumination and visibility: internal, halo and reflective options
- Sizing and typography for legibility
- Mounting, installation and council approvals to check before you order
- Design customisation and how to brief a sign maker
- Our approach to blade sign projects
- Start your blade sign project
- FAQ
- Sources
Blade sign styles and when to use each
The right style depends on your footpath, frontage and how far pedestrians can see your shop before they pass it. A narrow footpath calls for a slim or flag-style blade that projects less and avoids obstructing walkers, while a corner site can carry a larger double-sided or circular sign because it is seen from two streets at once.
- Projecting double-sided signs suit standard shopfronts on busy strips, giving equal visibility to pedestrians walking either direction.
- Flag or slim blades work best on narrow footpaths or laneways where projection depth is restricted.
- Circular signs suit heritage precincts or brands wanting a classic, pub-style silhouette that stands out among rectangular signage.
- Arcade or awning-mounted blades fit under existing verandahs and benefit from built-in weather protection.
High-traffic precincts reward a bolder, simpler shape with strong contrast, since shoppers only glance for a second or two as they walk past.
Materials and finishes: choosing for look, cost and durability
Material choice affects how a blade sign looks on day one and how it holds up after a few years outdoors. Aluminium is the most common choice for its light weight and corrosion resistance, while stainless steel suits a premium look where budget allows for the extra cost. Aluminium composite material (ACM) offers a flat, modern finish at a lower price point than solid metal, and acrylic panels work well for internally lit faces because they diffuse light evenly.
- Aluminium: light, weather-resistant, moderate cost, suits most storefronts.
- Stainless steel: premium finish, higher cost, excellent corrosion resistance.
- ACM panels: flat, affordable, good for printed or painted graphics.
- Acrylic: ideal for illuminated faces, diffuses light without hotspots.
- Reflectorised sheeting: boosts night visibility without power, lower maintenance.
Powder coating adds a durable colour layer that resists fading, while brushed or mirror metal finishes can create glare that reduces readability in direct sun.
Pro Tip: Match the finish to your lighting plan first, then pick colours, since a mirror finish under internal illumination can wash out your logo at night.
Illumination and visibility: internal, halo and reflective options
Illumination decides whether your sign works after dark, not just during trading hours. Internal or backlit faces give the most even, legible glow and are a common choice for retail blades, while halo illumination (light glowing from behind raised letters) creates a premium, modern effect that suits boutique brands. External spotlighting is cheaper to install but less even across the sign face, and reflective sheeting offers a no-power option that still improves night-time legibility.
- Internal/backlit: strong, even legibility after dark; higher upfront cost.
- Halo lighting: distinctive glow effect, good for premium branding.
- External spotlights: lower cost, less consistent coverage.
- Reflective sheeting: no running cost, relies on ambient or vehicle light.
Flashing or animated lighting is best avoided. It rarely improves pedestrian legibility and is commonly flagged as inappropriate in council assessments, particularly near heritage items or residential zones. Where light spill toward neighbouring windows or footpaths is a concern, a dimmer or shielded fitting keeps the sign visible without becoming a nuisance.
Sizing and typography for legibility
Letter height should match how far away people need to read your sign, not just how big you can fit on the blade. A commonly used guide suggests roughly 33 to 40 feet (10 to 12 metres) of viewing distance for every 1 inch (25.4 millimetres) of letter height, according to Sign Research Foundation research on illuminated sign conspicuity. For a shopper who needs to read your name from 10 metres away, letters around 25 millimetres tall are a reasonable starting point, scaling up for busier roads or higher mounting positions.
Mixed-case type generally reads faster than all capitals, since word shapes help recognition at a glance. Choose a clean sans-serif typeface, generous letter spacing and strong contrast between text and background, and add a border where the streetscape behind your sign is visually busy. Viewing angle matters too: a sign mounted high or angled away from the main sightline needs larger letters than one hung square to the footpath at eye level.
Mounting, installation and council approvals to check before you order
Getting the bracket and projection right matters as much as the design itself. Most projecting blade signs use a wall-mounted bracket with a defined maximum projection and minimum clearance height, and heavier or larger faces need wind load calculations factored into the bracket size.
- Confirm your bracket type can carry the sign's weight and withstand local wind exposure.
- Check minimum clearance heights, since guidance such as permitted advertising device rules often sets clearances around 2.1 to 2.4 metres depending on whether the element is rigid or flexible.
- Prepare a signage plan sketch showing dimensions and the sign's relationship to windows, doors and other building features, as most councils expect in a formal signage submission.
- Flag heritage overlays or street amenity rules early, since these commonly restrict projection size, illumination type or sign shape.
- Submit measurements and projection figures alongside your application rather than after installation, since missing dimensions are a frequent cause of delay.
Design customisation and how to brief a sign maker
A tight brief saves rounds of revisions and gets your sign council-ready faster. Supply a vector copy of your logo, your brand colours as hex or Pantone codes, clear frontage photos and accurate frontage width measurements before design begins.
- Keep the message to your business name or a simple icon, since taglines slow down a pedestrian's ability to read the sign at walking pace.
- Choose a border or background colour with strong contrast against your building face to lift conspicuity.
- Leave generous white space around text rather than filling the whole blade face.
Pro Tip: Photograph your frontage from across the street at the time of day you most want the sign to stand out, since that angle shows exactly what a sign maker needs to design for.
Our approach to blade sign projects
We build custom blade signs tailored to read well and meet council requirements. Our portfolio spans straightforward shopfront blades through to tricky heritage mountings where projection limits and clearance heights needed careful handling. We tailor each brief to the building, the brand and the approval requirements rather than applying a single template.
— bhumit
Start your blade sign project
We make it straightforward to move from idea to an installed, council-ready blade sign. Send us frontage photos, your frontage width, where you want the sign mounted and your logo files, and we can put together a design and a quote that accounts for the clearance and documentation your council will ask for.
Whether you need full expert sign manufacturing or want to start a DIY sign project, we work from the same measurements and brand assets to keep the process quick and the result on-brand.
FAQ
What is a blade sign?
A blade sign is a two-sided sign that projects outward from a building face, usually mounted on a bracket, designed to be read by pedestrians walking along the footpath rather than from across the street.
How tall should my blade sign letters be?
A common guide is roughly 33 to 40 feet (10 to 12 metres) of viewing distance per 1 inch (25.4 millimetres) of letter height, according to Sign Research Foundation. Scale letters up for busier roads, higher mounting or angled viewing.
Do I need council approval for a blade sign?
Most councils require a signage plan with dimensions, projection measurements and the sign's relationship to building features before approving a projecting sign. Requirements such as clearance heights and heritage restrictions vary, so checking your local signage controls early avoids rework.
What material lasts longest outdoors?
Aluminium and stainless steel generally hold up best outdoors, resisting corrosion with minimal maintenance, while ACM panels offer a more affordable flat finish with a shorter but still solid lifespan.
How much does a blade sign cost?
Pricing depends on size, material, illumination and mounting complexity, so we provide a quote once we have your frontage details and design brief. Reach out through our sign manufacturing service for a cost specific to your project.
Sources
For deeper detail on legibility research and local signage rules, see the Sign Research Foundation guidance and your council's own advertising and signage controls.