The Hollon HS-310D is a small, fireproof home safe designed for homeowners who need to protect deeds, passports, marriage certificates, wills, car titles, Social Security cards, and small valuables from a house fire. Whether you're a first-time safe buyer who wants real fire protection at a reasonable price, you're a renter or apartment dweller who needs something portable enough to take to your next place, or you're a long-time safe owner who prefers the no-battery reliability of a mechanical lock, the HS-310D delivers a 2-hour fire rating tested at 1,850 degrees Fahrenheit, a dual-control mechanical lock (combination dial plus a physical key, both required to open), and a 85-pound cabinet small enough to live in a closet, drawer, or office cubby.
The interior measures 8 inches tall, 12.33 inches wide, and 9.29 inches deep, for a total of 0.53 cubic feet of usable space. That's not big, but it's the right size for what most homeowners actually need to fire-protect: a stack of important documents in a folder, a few small jewelry boxes, a passport pouch, hard drives or memory cards, and a small amount of cash or coin. If you need more capacity, the HS-310D is the smallest in Hollon's HS home safe series, and larger models are available.
The 2-hour fire rating of 1,850 degrees Fahrenheit is the headline number for this safe, and it is worth understanding. Most consumer fireproof safes are rated for 30 to 45 minutes at 1,400 or 1,550 degrees Fahrenheit. The HS-310D's 2-hour rating at 1,850 degrees Fahrenheit is meaningfully more conservative than the typical residential fire (which peaks around 1,100 to 1,500 degrees Fahrenheit and is usually suppressed by the fire department within 20 to 30 minutes). That extra margin matters if you live in a rural area with slower fire response, if you're storing genuinely irreplaceable family records, or if you want the documents to come out of a worst-case fire intact. The construction uses a Portland-cement-based insulation between the inner and outer steel walls, with a grooved door seal that blocks smoke and superheated air from reaching the interior.
The HS-310D uses a dual-control mechanical lock: a combination dial paired with a physical key, both required to open the safe. To unlock, you dial the combination and turn the key, which means even if someone discovered your combination, they still couldn't open the safe without the physical key. That extra layer of security is a real differentiator on a small home safe in this price range, and it's a setup that long-time safe owners often prefer for its no-electronics simplicity. The mechanical dial doesn't rely on batteries, so the lock will open every time you need it without any concern about dead batteries or failed electronics. The trade-offs are that opening takes a few extra seconds compared to an electronic keypad, and you need to keep the key somewhere safe but accessible. If you'd rather have an electronic keypad for quicker access and no keys to manage, the Hollon HS-310E is the same safe with a digital lock for $47 more.
For security, the HS-310D has 2 active rectangle locking bolts on the lock side of the door, plus fixed hinge-side bolts that engage when the door is closed. There's one pre-drilled anchor hole in the bottom, and the mounting hardware is included so you can bolt the safe to a closet floor, shelf, or desk drawer to prevent grab-and-go theft. At 85 pounds, this isn't a safe that stops a determined burglar with time on their hands, but anchored properly, it does prevent the most common residential theft pattern: someone grabs the safe and leaves with it to crack open later.
On the outside, the HS-310D is 11.75 inches tall, 16.5 inches wide, and 14 inches deep (add 1 inch for the hinges). The white finish gives it a clean look that doesn't stand out as a "safe" in an office or closet setting. Every HS-310D is backed by Hollon's Lifetime Fire Warranty: if the safe is damaged in a documented house fire, Hollon will replace it. If you have questions about whether the HS-310D is the right size for your documents, want to compare against the electronic-lock HS-310E, or are looking at a larger model in the Hollon HS series, give us a call at 800-207-2259, Monday through Friday, 8AM to 5PM PST. We'll walk you through it.
Features
Fire Protection
Lock
Security
Capacity & Dimensions
Finish
Warranty
The Hollon HS-310D is a small, fireproof home safe designed for homeowners who need to protect deeds, passports, marriage certificates, wills, car titles, Social Security cards, and small valuables from a house fire. Whether you're a first-time safe buyer who wants real fire protection at a reasonable price, you're a renter or apartment dweller who needs something portable enough to take to your next place, or you're a long-time safe owner who prefers the no-battery reliability of a mechanical lock, the HS-310D delivers a 2-hour fire rating tested at 1,850 degrees Fahrenheit, a dual-control mechanical lock (combination dial plus a physical key, both required to open), and a 85-pound cabinet small enough to live in a closet, drawer, or office cubby.
The interior measures 8 inches tall, 12.33 inches wide, and 9.29 inches deep, for a total of 0.53 cubic feet of usable space. That's not big, but it's the right size for what most homeowners actually need to fire-protect: a stack of important documents in a folder, a few small jewelry boxes, a passport pouch, hard drives or memory cards, and a small amount of cash or coin. If you need more capacity, the HS-310D is the smallest in Hollon's HS home safe series, and larger models are available.
The 2-hour fire rating of 1,850 degrees Fahrenheit is the headline number for this safe, and it is worth understanding. Most consumer fireproof safes are rated for 30 to 45 minutes at 1,400 or 1,550 degrees Fahrenheit. The HS-310D's 2-hour rating at 1,850 degrees Fahrenheit is meaningfully more conservative than the typical residential fire (which peaks around 1,100 to 1,500 degrees Fahrenheit and is usually suppressed by the fire department within 20 to 30 minutes). That extra margin matters if you live in a rural area with slower fire response, if you're storing genuinely irreplaceable family records, or if you want the documents to come out of a worst-case fire intact. The construction uses a Portland-cement-based insulation between the inner and outer steel walls, with a grooved door seal that blocks smoke and superheated air from reaching the interior.
The HS-310D uses a dual-control mechanical lock: a combination dial paired with a physical key, both required to open the safe. To unlock, you dial the combination and turn the key, which means even if someone discovered your combination, they still couldn't open the safe without the physical key. That extra layer of security is a real differentiator on a small home safe in this price range, and it's a setup that long-time safe owners often prefer for its no-electronics simplicity. The mechanical dial doesn't rely on batteries, so the lock will open every time you need it without any concern about dead batteries or failed electronics. The trade-offs are that opening takes a few extra seconds compared to an electronic keypad, and you need to keep the key somewhere safe but accessible. If you'd rather have an electronic keypad for quicker access and no keys to manage, the Hollon HS-310E is the same safe with a digital lock for $47 more.
For security, the HS-310D has 2 active rectangle locking bolts on the lock side of the door, plus fixed hinge-side bolts that engage when the door is closed. There's one pre-drilled anchor hole in the bottom, and the mounting hardware is included so you can bolt the safe to a closet floor, shelf, or desk drawer to prevent grab-and-go theft. At 85 pounds, this isn't a safe that stops a determined burglar with time on their hands, but anchored properly, it does prevent the most common residential theft pattern: someone grabs the safe and leaves with it to crack open later.
On the outside, the HS-310D is 11.75 inches tall, 16.5 inches wide, and 14 inches deep (add 1 inch for the hinges). The white finish gives it a clean look that doesn't stand out as a "safe" in an office or closet setting. Every HS-310D is backed by Hollon's Lifetime Fire Warranty: if the safe is damaged in a documented house fire, Hollon will replace it. If you have questions about whether the HS-310D is the right size for your documents, want to compare against the electronic-lock HS-310E, or are looking at a larger model in the Hollon HS series, give us a call at 800-207-2259, Monday through Friday, 8AM to 5PM PST. We'll walk you through it.
Features
Fire Protection
Lock
Security
Capacity & Dimensions
Finish
Warranty
